Corrected entry: It would have been a lot easier for Doc to construct a rudimentary rocket using gunpowder as the propellant than the highly unlikely solution that he ended up doing. He could have attached two pipes, either side of the car. Gunpowder from bullets, shotgun cartridges etc. Wouldn't even need the railroad wheel conversion although I reckon would be better on rails than a dirt road.Bodragon
Corrected entry: During the train sequence, when it's pushing the DeLorean, there is a wide shot of the green steam coming out of the train. The steam looks computer generated because it is far too bright and appears slightly away from the train.
Corrected entry: When Marty finally returns back to 1985 on the finished train track the ravine has been renamed in honor of his alias "Clint Eastwood." But why? The townspeople wouldn't know it was him on the train and Doc wouldn't have been so foolish as to tell anyone "Clint" hijacked the train after becoming a hero from the Tannen fight. It should have still been called Shonash Ravine.
Corrected entry: When Marty asks the Doc if they can take Clara with them to the future, the Doc says no, because you mustn't tamper with the time continuum for your own benefits. However, in the second film, he does change the continuum for Marty and Jennifer's benefits, by going with Marty and Jennifer to change the future, so their son wouldn't go to jail.
Corrected entry: The jacket suit that Biff wears in the garage scene in 1985 in Part 3 is red and gray. It is green and gray in the other films.
Corrected entry: When the train is pushing the DeLorean and "Clara" on the train and trying to get to Doc, Marty is in the driver's seat, then the next shot he's in the passenger seat to where he passes the hover board to Doc, then when Marty passes through time to Eastwood Ravine he's back in the driver's seat.huggiewk
Corrected entry: When the DeLorean suddenly appeared in 1885, the Indians have absolutely no reaction at all. There is no possible way that they wouldn't have been the least bit spooked or confused, and we should have seen some semblance of this in their actions, but they just keep charging on like nothing happened. It'd be like a an alien spaceship appearing out of nowhere in Times Square and people not even batting an eyelash.Knever
Corrected entry: Doc Brown can build a time machine but is unable to figure out how to build a still to extract pure ethanol from Whisky in order to use as fuel for the DeLorean. He stated to Clara that he is a "student of all science" so this should include chemistry. Chemists know how to build a still. Doc, however, tried to fuel the car with strong Whisky without distilling it.Acteon
Corrected entry: In 1885 Marty meets his great-great-grandparents. His great-great-grandfather looks like him so that we can be sure of their relation. BUT, his great-great-grandmother looks like his own mother. This makes no sense as in this way his parents are related by blood due to the resemblance of their ancestors.
Corrected entry: There really should have been no reason for Marty to risk going back to 1885 to rescue Doc. Obviously, 1985 Doc being killed by Tannen, did not negate his eventual existence (as evidenced by 1955 Doc still existing). It's understandable Marty would want to prevent his friend being murdered, but when they learned of this fact in 1955, this event had already happened 70 years ago. 1955 Doc surely would have realized the pointlessness of Marty going to rescue his future self in the past when 1955 Doc would eventually become 1985 Doc again through the natural course of time. In light of this, surely 1955 Doc would have explained to Marty there was no reason to go back and possible cause more damage to the Space-Time Continuum.
Corrected entry: When doc picks out clothes for Marty to wear to the old west, Marty asks if they are authentic, so Doc says "sure, haven't you ever seen a western?" Considering Doc is supposedly a genius and the old west is his favorite historical era (he himself said it was his favorite era in part 2) he should know that Hollywood's version of old west clothing and the reality of it are two different things. Doc should know better than to base his knowledge on Hollywood films.calidude
Corrected entry: Doc begins telling Marty about his accident with Rolls-Royce, before stopping himself and telling Marty it's better that he doesn't know. How exactly did Doc find out about the Rolls-Royce incident in the first place? When Doc was in the year 2015, he didn't actually talk to Marty or any of his family or Needles, so who told him about the Rolls-Royce incident? At that point, it had happened 30 years prior, so it's doubtful that a minor car crash from 1985 would still be the talk of the town in 2015.calidude
Corrected entry: When Seamus McFly goes to comfort his crying baby son William, we can see that he is a very affectionate father. This was practically unheard of in the 19th century. Children were routinely beaten for even the smallest infractions at the time, it was the norm. Since William was only an infant, I doubt he would be beaten, but his father would not be so kind towards him either. His attitude would be more like "shut up kid, what are you crying about now?". The whole concept of being affectionate towards one's children is more of a 20th century idea.calidude
Corrected entry: Why would Doc label the toy car "time machine" when they both knew what it was? Having the car marked like that would only make sense for Clara to see it when she arrives at the livery so she would assume that Doc was telling the truth when he told her he was from the future. Since Marty and Doc wanted to minimize their true identities and their association with the future, they should have covered the train set up, just in case they failed in their attempt and/or had to come back.
Corrected entry: Freeze frame is recommended when trying to catch this one. When Clara rides out of the stable her hat falls off, however in the next shot of her turning the corner you can see the silhouette of the brim, indicating that it has returned to her head.
Corrected entry: When Doc and Marty locate the time machine in the mine/cave in 1955, the door/entrance to the mine cave is too small to have been used in 1885 to get the time machine into the mine cave. Others have said that Doc had the intelligence and time to disassemble the car/time machine, carry the parts in and re-assemble it inside the mine/cave. The problem with this is that while many parts (engine, doors etc.) could be disassembled, the body and frame can only be disassembled so much, they would still be too large to get through the door. Doc would have had to cut them up, carry them in, and then weld them back together. There were no signs of a welding process (weld bead) on the roof, which is part of the one-piece body. Since the body is stainless steel, the welds could not be sanded down and painted over, and there is no paint.Robert Sullinger
Corrected entry: In the letter the Doc sends to Marty in 1955 telling him where to find the time machine and telling him not to come back to 1885 to rescue him, he says he has met a wonderful woman and is thinking of settling down with her. When Marty goes back to 1885 the day after the letter was sent, the Doc has not met Clara yet and does not appear to have any other female attachments.
Corrected entry: Doc is always banging on about making as little impact as possible in his new life as an inhabitant of 1885, yet the method of exit he chooses will change hundreds of lives and cause huge disruptions to all sorts of timelines. The train they destroy would not have been easy to replace, and would have been used by hundreds, maybe thousands of travelers to get to places they are now not going to get to, to meet people they are now not going to meet, to start family lines that now don't exist, and so on on so on. Now that Buford is no longer a threat, a far better alternative would be for Marty and Doc to leave town and live quiet, anonymous lives somewhere isolated - something Doc has already thought of and a far better idea than their returning to the future in such a damaging manner.
Corrected entry: At the onset of the film, Doc and Marty discover Doc's grave from 1885 with the dedication by Clara Clayton on it. Now remember, this was before Marty had gone back to 1885 to meet Doc and further influence the happenings in that year, which included their chance meeting with Clara when she almost died. Even without Marty's influence in 1885, history of the film series up to that point said Clara went over the cliff and died. So therefore, it is inconceiveable that Clara could have lived to even meet Doc to put the dedication on his grave, as he died a few days after she would have.
Corrected entry: In the opening scene when Doc wakes up he turns on the TV to hear "Hey kids, what time is it? It's Howdy Dowdy time." Doc, on the phone, says the time is 7 o'clock AM. Any smart baby boomer knows that Howdy Dowdy aired at 5:30 PM EST.
Corrected entry: Once Bueford went to jail, there was no hurry to get back to the future; as they did not have to leave before one of them got shot. Bearing that in mind, why did they chase after the 8 o'clock train? They didn't have much time to do that, which made it extremely difficult. They could've easily just used a train on a later date, one with plenty of time to plan out the experiment.
Corrected entry: In the scene when Doc enters the saloon after having his heart broken by Clara, he is approached by a barbed-wire salesman. It appears that the salesman is wearing hearing aids. Obviously impossible for that time period.
Corrected entry: When Marty is sent to 1885, he arrives at September 2nd, 1885. Then, Doc has to meet Clara at the station the next day, September 3rd. But when Doc and Marty are figuring out a way to reach 88 miles an hour with the DeLorean, the calendar shows "September 4th" and they still haven't met Clara.
Corrected entry: Right toward the end of the movie, a split second before the Train crashes into the Delorean, underneath the Car you can see that a fireball bursts, causing the effect.
Corrected entry: When Clara and Doc are hanging off the train barely, Marty lets the hoverboard go so Doc can save himself and Clara, which he does. When he pulls away from the train, the camera is shooting from Marty's P.O.V. and it shows Doc pulling ahead of the train and past the Delorean. He would slow down if anything, not speed up, especially holding Clara.
Corrected entry: When Doc and Marty are in the old mine looking for the Time Machine they bust open the sealed entry and find it. The entry is too small to get the Time Machine out. Even if we assume that they made the entry larger, how did the 1885 version of Doc get the Time Machine into the room through the smaller entry back in 1885?Robert Sullinger
Corrected entry: When the DeLorean is destroyed by the train at the end, why does the train smash through it, instead of just pushing it back down the tracks? Even if Marty had put on a parking brake (which we don't see him doing) it doesn't seem like it would be strong enough to withstand the force of the train. Even cars that are sitting perpendicularly on railroad tracks get pushed along by fast-moving trains, so why not a car that's specially designed to move on the tracks?Krista
Corrected entry: How come the Native Americans aren't surprised at all when a racing Delorian appears from thin air in front of them, in dazzling futuristic lights?
Corrected entry: When Doc and Marty are in the blacksmith shop, Doc reads the picture tombstone: Shot in the BACK for a matter of $80. Even Buford emphasises this in the previous scene; "one day you gonna get a bullet in your back". However, in the festival scene when Buford is about to shoot Doc, Doc is facing FORWARD. If Marty had not been there to stop the bullet with the frisbee, Doc would have been shot in the chest, not the back.
00:36:00 - 00:58:45
Corrected entry: In the second film, we learn that Marty's future was drastically altered by a car accident with a Rolls Royce, the driver of which apparently suing Marty for damages. When we see the accident, Marty was meant to be racing down a highway, with the Rolls failing to give way coming out of a side street. This means that it was actually the Rolls Royce's fault, and the driver can't have sued Marty. (He would still have broken his hand, but his financial situation would have been much better off in the future).
Corrected entry: At the beginning of the movie in 1955, Marty has Einstein with him and left him with Doc of 1955. At the end of the movie Doc from 1885 went back to 1985 to see Marty and said he had to come back for Einstein, but wasn't Einstein with the Doc of 1955. So how did Doc get him back, is there some kind of explanation?
Corrected entry: At the very end of the movie when Marty and Jennifer are at the wreck on the train tracks, the thing starts dinging and the arms lower, indicating that a train is coming. But if Doc is coming from somewhere else in time, then it wouldn't say a train was coming, and one dosn't come later.
Corrected entry: As the train approaches the DeLorean there is no wooden scaffold to hold the rubber tyres acting as a buffer, yet in the next shot a few seconds later, there is a wooden scaffold on the cow catcher.
Corrected entry: The arrow stuck in the side of the DeLorean is perpendicular to the car, but that side wasn't facing the Indians during the chase so they couldn't have hit it.
Corrected entry: After the DeLorean is destroyed by the train, Marty goes to get his truck, picks up Jennifer, almost races with Needles, and then finally returns to the scene of the accident. Isn't it odd that a car was hit by a train, yet there are no emergency vehicles anywhere around, or that the train didn't stop afterward?BGraz
Corrected entry: When Doc is telling Clara he is leaving and will not see her again, and he tells her he is leaving in a time machine. Clara tells Doc that she also read the Time Machine and is a fan of Jules Verne, but the Time Machine was written by H. G. Wells.
Corrected entry: Given that Doc is so concerned about influencing future events, why does he set up shop right in the middle of town (creating a lot of loud and noisy inventions) and attend town meetings, and volunteer to pick Clara up at the train station? He should be a hermit, living as far away from people and civilization as possible.Krista
Corrected entry: When the 1955 Doc Brown and Marty went to retrieve the DeLorean from the cave, the passage between the room containing the car and the rest of the mine was rather narrow, and to remove the support beam on either side of the opening to widen the opening is to risk a cave in. How did the car get in there or out? Piece by piece?
Corrected entry: When the locomotive crashes from the bridge, there is a huge explosion (may have been added digitally in a later version). However, there are no explosives in a steam-engine, only water and wood.
Corrected entry: When the DeLorean travels forward through time at the beginning of the first movie, the car gets covered in ice. During all other subsequent time travel, this does not happen.
Corrected entry: There are two Time Machines in the Old West (1885). One is with Marty and the Doc. The other is in the mine where Doc put it. It has to be there because if it's not, Marty and the 1955 Doc could've never got it, repaired it, and sent Marty to 1885 to save the Doc of 1985. 1985 Doc and Marty could've saved themselves a LOT of trouble by going to the Time Machine in the mine (in 1885) and transporting the gas from it into the other Time Machine (and, of course, repair the fuel line).
Corrected entry: Isn't it strange that Doc didn't destroy all his stuff in the blacksmith's workshop before going back to the future? Clara goes back to the workshop and finds the model of the railroad and the Delorean, clearly labeled "time machine."
Corrected entry: This would only be noticeable to the true movie geek, but when Doc and Marty are looking at the map to plan their trip back to 1985, Clara is standing in the background waiting for Doc to pick her up as he promised he would do. Since he doesn't show, she apparently rents a wagon herself and. . . well, the rest is history.Nicki
Corrected entry: A device created by Doc makes a hen lay an egg. The egg breaks and falls in a salad dish then the white and yolk of the egg fall in the frying pan. But where are the shells of the eggs?
Corrected entry: When Marty leaves for the future at the beginning of Part II, Biff is in his red tracksuit about to wash their cars and Marty's black truck is in the garage. Then in Parts II and III, Marty and Doc make plenty of changes in the past and Doc staying in 1885 would greatly change things on Marty's return to 1985. But when Marty's returns to 1985 at the end of Part III, Biff is still in his red tracksuit about to wash the cars and the same black truck is still in the garage.Gavin Jackson
Corrected entry: When Doc puts a buffer on the train, it has tires in it. No-one had cars so where would he get the tires from?
Corrected entry: The main plot device is the lack of petrol. The Doc has an ice generating machine and lamp oil. The ice-generating machine is steam driven and works at ambient temperature. Therefore it is fair to assume that it uses pressure transformation to achieve freezing. It should be fairly simple to rebuild the compression equipment from the icebox into a small scale cracking unit. The required technology is similar. Cracking is the process of breaking down heavy oils like lamp to light ones like petrol. At this point in the film they have several days which should be plenty of time to do this. This would be a much safer course of action.
Corrected entry: If the 1955 Doc saw his tomb and sent Marty to 1885 he shouldn't be surprised to see him in 1885, since the Doc that's in 1885 is the same one who sent him there in 55, and hence has already seen his tomb. Some people argue it's not the same Doc, but time travelling doesn't magically create a new human being! The 1955 Doc sends Marty back to 1885, ages 30 years, invents a time machine, travels around, and ends up in 1885. 30 years may dull the memory a bit, but I think you'd remember sending someone into the past to rescue yourself...
Corrected entry: In the last scene in 1885 where Marty, Doc, and Clara are on the train racing toward the bridge, Marty keeps yelling at Doc on his walkie talkie to tell him the gauge readings. But after Doc sees Clara on the train, he tries to rescue her and Doc is no longer holding his walkie-talkie. Doc is holding on to the train with one hand while reaching for Clara with the other. Doc's walkie-talkie is no longer anywhere in sight. Marty sees all this but he nevertheless keeps yelling into his walkie-talkie right to the end as if that is how Doc could hear him. Marty does this even when he is facing forward all by himself in the DeLorean. Who is Marty talking to on the radio? It can't be Doc.
Corrected entry: During the final train sequence, how does that gauge in the Delorean measure the pressure inside the train, when nothing is physically attached between it and the Delorean to measure that?
Corrected entry: Doc's tombstone was placed by his "beloved Clara". However, that was discovered (and carved) before Marty went back and changed the past by him and Doc rescuing Clara. So how did Doc meet Clara without Marty being there, given that the ravine was already called Clayton ravine, meaning that by definition she must have fallen in? Bit of a paradox, methinks. Even assuming he met her at the station, then after that her carriage fell into the ravine, the timings just don't work at all - she couldn't have fallen for him in minutes, and/or couldn't have had her name on the gravestone given that she fell in the ravine before Doc was shot.
Corrected entry: In the scene where Doc explains to Marty the idea of pushing the DeLorean across the bridge, Marty points out that the bridge is not completed yet (in 1885). Doc says that Marty is just not thinking 4th dimensionally, and once they return to 1985, the bridge is complete, safe and still in use. Unfortunately, the whole idea of returning to the exact same point in space, but a different time, is fundamentally flawed. If the DeLorean was to return to the same point in SPACE, only 100 years later, it would have to account not only for the completion of the bridge, but to all of the other changes to the physical environment. For example, in 100 years, the North American continent would have moved because of continental drift, the Earth would have rotated on its axis, so that point in space would no longer be Hill Vally, CA; the whole planet is revolving around the sun, therefore, the planet Earth wouldn't be in that exact point in SPACE, the sun is revolving around the galaxy, the galaxy moves through the universe, and on and on. Anyway, the DeLorean couldn't have shown up on the completed bridge 100 years later because Earth is moving through space in several different ways.
Corrected entry: When the 1955 Doc sends Marty back to 1885 he points to a cave where to hide the DeLorian left of the track that Marty takes (directly towards that cinema screen). In 1885 then, Marty takes a U-Turn to flee from the Native Americans. Assuming a 180 degree turn, the cave to hide the car must be on the right hand side. However, the cave appears directly in front of him.
Corrected entry: Just before the train hits the inside of the ravine, the train explodes. It shouldn't just explode in midair.
Corrected entry: As per http://www.bartleby.com/65/in/intern-co.html, J. J. É. Lenoir built the first gasoline powered internal combustion in 1859. de Rochas patented a design in 1862, and Otto built an engine in 1878. Gottlieb Daimler built what is considered the ancestor of today's Internal Combustion Engine in 1885. All this is by way of saying that gasoline would not have been impossible to find in 1885...especially considering that Edmund Drake drilled America's first oil well in 1859.
Corrected entry: At the end of the film, Jennifer has the fax from the second movie saying 'You're Fired'. Then, because Marty stood up to Needles, the message erased. However, Jennifer still has the piece of paper. If Marty didn't get fired in 2015, then there would be no fax, and therefore no piece of paper at all. Jennifer shouldn't have had the piece of paper.
Corrected entry: Okay, we're going to get a bit deep here. Doc and Marty found Doc's grave in 1955. Doc sends Marty back to 1885 to rescue Doc. Now.....remember....all hinges around the image on the picture. Once the grave stone is broken in the fight with Mad Dog Tannen the image of the grave disappears in the photo. Wouldn't the picture disappear too? No grave in 1885 means no grave in 1955 which means no reason to take a picture in the first place. But then again....once the grave is broken then there would have been no grave in 1955 for Doc to see. Therefore he would have never sent Marty back in the first place. HENCE...once the grave was broken....the timeline is fixed and Doc of 1885 would live happily ever after with Clara, Doc of 1955 would just work on getting Marty home, and Marty would have disappeared from the 1885 timeline and things would have continued from when Doc and Marty are digging out the old DeLorean. Told you it was deep.
Corrected entry: In the scene at the start of the movie, the time machine is flying 50 feet or so in the air when it is struck by lightning and sent back to 1885. Later in the movie, we learn that the lightning destroyed the flying circuits. Assuming this is true, as soon as the time machine appeared in 1885, it would have fallen to the ground and been destroyed.
Corrected entry: When Doc and Marty find the Delorean in the mine, the tires have rotted off with time. It seems that all they had to do to run the car again was replace the tires. However, as any mechanic will know, in that amount of time not just the tires would have rotted. Every rubber hose and gasket, every piece of wire insulation, every bushing and grommet, and many other parts in the car would also need to be replaced. There would be no way to run the car short of completely rebuilding it.
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