Back to the Future Part II

Corrected entry: When Marty's daughter answers the door she lets in Grandma Lorraine and Grampa George. Lorraine says that she brought pizza for everyone. Marlene says "who's going to eat all of that" and Grampa George says "I will." Yet, when the pizza is hydrated, Grampa George is not in the kitchen at the table or in any of the following house scenes.

Correction: Any number of explanations. Grandpa George could have been in the bathroom, for all we know.

K.C. Sierra

Correction: He was to the side, off-camera. There's a deleted scene that shows this.

Corrected entry: The money ratio in 2015 seems incorrect. When Doc sends Marty into Cafe 80's he hands him a $50 for a Pepsi. In another scene when Marty is walking outside, Old Terry asks Marty for $100 to save the clock tower. Usually a soft drink would cost more than what a man waving a can would ask for. Then when old Biff gets out of the taxi, his total comes to $174.50. According to the price of a Pepsi, doesn't this taxi ride seem cheap?

Correction: Two things: the Pepsi/donation ratio isn't that odd; if you paid a dollar for a Pepsi, giving a couple of bucks to help a local landmark is pretty normal. The taxi fare only seems 'incorrect' compared to what we're used to now. Cab rides are expensive due to wages, gas prices, vehicle upkeep, and other expenses; perhaps they've found a way to keep those costs down.

Xofer

Corrected entry: When the Doc gets hit by lightning and goes back in time, he's not going 88mph, which Marty had to do in the first movie.

Correction: According the director's commentary, when the DeLorean was hit by the lighting, it got sent into a tight, fast spin which brought the speed up to 88 mph. This is also the reason why the fire trails look like backward 9's; the car is spinning, so the fire trails can't be straight.

Corrected entry: We all know that Old Biff stole the time-machine, went back to 1955 and gave the book to himself. He also returned the time-machine to Marty and Doc. WHY? He actually gave them the ability to restore the past. Why didn't Old Biff just keep the time-machine?

Correction: Biff doesn't know how time travel works. Presumably, he assumed that if he were to go back to the future, he'd end up in the alternate future he had just created (which would make sense) and become the 'rich' Biff.

Correction: Character choices are not mistakes.

oldbaldyone

Biff didn't want Marty and Doc to know what he had done, otherwise they could've presumably gone back to 1955 from 2015 and swipe it. He needed them to think the car hadn't moved, so he could become rich. Biff isn't the brightest bulb on the tree but even he could figure that out.

Corrected entry: When Marty is trying to recover the future copy of the sports almanac from the office of Mr. Strickland, he sees that inside the almanac's cover is a dirty magazine. ("Oh La La"). After Strickland leaves the office, Marty tears the almanac cover off, crumples it up, and throws it on the ground, leaving it there. Later, at the dance, BTTF2 Marty is knocked down by a door that is thrown open by the BTTF1 Marty and Biff sees the, now intact with no crumpled cover, almanac inside Marty's leather jacket. Biff then takes it, never replacing the Oh La La inside with the almanac contents. (01:21:00 - 01:40:00)

Correction: That was actually the dust cover from the almanac that Marty tore off; Biff hid the copy of "Oh La La" inside the dust cover while keeping the almanac hidden inside his jacket. BTTF2 Marty took the almanac back shortly after Biff was knocked out by George; the almanac minus its dust cover was what Biff stole back from Marty.

zendaddy621

Correction: Doc's clearly done a lot of research into Marty's family, knowing what happens to them, who his kids are, etc. Knowing where he lives would be part of that.

Correction: He'd been there once before taking Marty to the future. When hearing about Marty McFly. Jr, he could have done a background search on him, including age, phone number, and address.

Corrected entry: In 2015 when the police get 1985 Jennifer to her home it's daylight, and they say "it's gonna be night time when we get there" but if they are flying that trip should be only a few minutes.

ozwal13

Correction: Doc, Marty, and Jennifer arrived in 2015 at 4:29 PM, already later in the afternoon. Doc also mentions that the skyway was jammed, meaning it would take flying cars longer than normal to arrive at their destinations. It's perfectly plausible that it could be dusk/dark by the time the police get 1985 Jennifer to her "future" home.

Corrected entry: After Marty burns the sports almanac, it is only burning for a few moments before it begins to pour rain. There was not enough time to burn the whole book, considering he started the fire with some cheap matches and no gas or lighter fluid to make it burn faster. Some of the pages may have survived. There would have been water damage from the rain on the remaining pages for sure, but a few pages may have still survived and have been legible enough for a passerby (or maybe even the western union guy) to be able to read and use to make bets.

calidude

Correction: Yes, but since Marty and Doc see the timeline change in response, it was enough to do the job.

Grumpy Scot

Corrected entry: When the "old Biff" steals the time machine in 2015, as Doc and Marty attempt to retrieve Jennifer, it shouldn't be possible for Biff to return to the world that exists around him, as he gets out of the car back in 2015. Doc, Marty, Jennifer, and the world around them ALL should no longer exist, while still trying to escape from 2015. An alternate time line should have been created the moment "old Biff" left 1955. (Thus, Doc's explanation to Marty via the chalkboard explaining an "Alternate Reality"). This all started in 1985, and one result of old Biff's ventures, we learn that Doc is committed to an institution and couldn't even invent, or at least complete, the time machine by October 26th, 1985, which is the starting date of the initial film.

BLuRD

Correction: It is pointed out in all 3 films that the time lines aren't altered immediately (e.g. In the first film, Marty and his siblings fade out of the photograph that he holds, rather than just simply disappear). Just because Doc didn't invent the time machine doesn't mean someone else didn't instead (it is possible Marty did it himself using Doc's notes).

Andy Benham 6979

Corrected entry: When Old Biff hands Young Biff the Almanac, the book passes through the film split (the vertical bar that divides the windshield) perfectly because it was on a motorized rig. But the stand-in for Old Biff didn't hold his arm at the right height, so Old Biff's arm disappears into the bar that runs down the middle of the window while the book floats across to Young Biff.

Correction: No it doesn't. The arm is below the windshield, that is why it can't be seen. The tip of the hand is perfectly visible, with no missing parts.

Sacha Premium member

Corrected entry: In the scene where Doc lands the DeLorean in pouring rain in 2015, after a while the rain stops, and it is sunny and you can see the clock tower is in full light when Marty looks at the newspaper. But when Marty, after putting on his new clothes, walks on the street, it is cloudy again.

Correction: As the submitter mentions the rain stops suddenly and it's sunny. Apparently there are some rapidly-moving clouds in the area; altogether possible for it to be overcast again within a few seconds.

BocaDavie Premium member

Corrected entry: When Marty and Doc successfully save Marty's son from going to prison in 2015, the USA Today headline spontaneously changes while Marty holds it. If this is possible, then, when Biff steals the DeLorean to deliver the almanac to his younger self, Marty and Doc's memories would be instantly replaced by those of the alternate 1985 - which would mean that Marty would not be baffled by bars on his windows or locks on his gate when he arrives back home there. In fact, they wouldn't have returned to that house at all.

Correction: Throughout the course of the three films physical objects change but Doc and Marty retain the bulk of their memories from alternate time lines, apparently protected from time line changes. Since it's all science fiction we'll have to assume it works the way it is shown in the film.

BocaDavie Premium member

I would add that there seems to be a proportional relation between the historical event being altered and when the change takes root. Thirty years between alteration and changed result seems to take nearly a week. The event of the arrest and trial is only a day (two at most) in the future. Thus, presto-changeo.

Corrected entry: How did 2015 Biff know how to operate the time machine well enough to get himself back to see 1955 Biff? He learns about the existence of the time machine from an overheard conversation, which does not include any details of how to set the time circuits nor the requirement to accelerate the car to 88 mph in order to start the time jump.

Correction: This is a question, not a mistake. Given that the time circuits are not that complicated (it's a keypad with a display clearly marked DESTINATION) and that Biff also saw the time machine in use in 1985, it might not have taken him very long to figure out: 1. Punch in numbers and 2. Go fast. Not that he needed a short amount of time to figure out. This is a time machine, after all. He could have stolen the Delorean and then spent weeks figuring it out, with Doc and Marty none the wiser as long as he returned it to a time moments after he stole it. Not to mention that Doc may have left materials (like the videotape of the Delorean's test run from the first film) in the car that could have facilitated Biff's figuring it out.

JC Fernandez

Corrected entry: After Marty gets a crack shot on wild gunman, the screen is black. But when you see the arcade machine, just before Marty Jr. says, "Griff, guys, hey," you see the screen is on.

DeathGawd

Correction: There are twenty seconds between the two shots in question. The 30+-year-old machine could simply have been resetting itself after Marty had scored his "crack shot."

JC Fernandez

Corrected entry: Doc puts Jennifer to sleep because she was asking too many questions about her future, and according to him, no-one should know too much about their future. But when they have landed in 2015, Doc doesn't see anything wrong with telling Marty, at length, what is going to happen to Marty in his future.

Correction: Character decision, not a movie mistake. Marty is already completely informed about the time machine. Doc is taking a calculated risk that the 1985 Marty can fix this one event (that ruins his kid's lives) without severely disrupting the existing time line (from 1985 to 2015). Doc does not disclose any information to Marty about his future, only about the future of Marty's kids. Putting Jennifer to sleep with the hopes of making her think it was all a dream would ensure that she does nothing to disrupt the time line.

BocaDavie Premium member

Corrected entry: In Back to the Future 1 after Marty goes to 1955, you see a sign that says "Hill Valley 2 Miles". Later in the movie, Marty talks to George and Lorraine then walks out the door. The next scene you see Marty with Doc in his 1985 explaining that he needed to change his clothes, and than there is the whole sequence where Marty goes back to 1985. In 1955, in Back to the Future 2, Marty is standing outside the gym when Biff approaches him. Marty is knocked down by his earlier self, and Biff steals the Almanac. Then Marty steals the Almanac, burns it, sees Doc get struck by lightning, receives the telaeraph, runs 2 miles back to Hill Valley, just to meet Doc after his previous self goes back to 1985. How is it possible for on Marty to do the thing previously stated, while the other one dresses and drives to the Clock Tower, taking up the same amount of time?

Correction: You explained the nit yourself. We don't know how long it took for Marty to change into his 1985 clothes in Part 1... we only know that according to Doc, Marty was late in meeting him. Marty may have gone back to Doc's house to get his clothes, adding some time.

JC Fernandez

Corrected entry: When 1985 Marty first puts on the "future jacket," the sleeves are really long (can't see his hands or anything), but after Doc comes up (and before he pushes the button to make it fit) you can see Marty's fingertips, and the jacket only goes up a short bit.

Correction: Marty is holding the sleeves up. That's why you see his fingers.

Corrected entry: In the Cafe 80's scene, when the future Marty has ordered a Pepsi and Griff walks in, the Pepsi bottle changes from in his hands to on the counter several times between shots.

Correction: He is holding it the entire time. There are other bottles on the counter.

Corrected entry: The two theories of time travel displayed in the Back to the Future series seem to conflict with each other. In the first movie, Marty changes history to create a future where he was never born, and as a result he begins to fade out of existence. In the second movie, Biff changes history to create a future where Marty is away at boarding school, but rather than fading into his new timeline, Marty stays exactly the same. There are now two Martys, one from 1985 (Marty 1) and one from 1985A (Marty 2). If that's the case, then Marty should have stayed exactly the same in the first movie (Marty 1) and returned to an alternate universe where his other self (Marty 2) was never born.

Correction: The first movie also establishes that the irreversible changes in the timeline are not instantaneous. Marty was in 1955 for a week before he started fading away. He was only in 1985A for a few hours.

JC Fernandez

Corrected entry: When Marty is talking to the Doc when he is in the back of Biff's car, it shows the present Doc with the past Doc's hair (i.e. the actor has the wrong wig on). It cuts back to Marty, then back to the Doc, where he still has the past Doc's hair. When it cuts back to the Doc a third time, he has the present Doc's hairstyle. (01:09:30)

Correction: No such thing. First, since the only two scenes Christopher Lloyd played "young Doc" (when "old Doc" runs into him and when Marty runs around the corner) both took place at the clock tower at night, there would be no reason for the actor to wear the wrong wig. Secondly, "young Doc" has wavy, blond hair while "old Doc" has white hair. The Doc talking to Marty on the walkie not only has white hair, it's the same white hair. The only difference in the shots you're mentioning is that the wind is blowing in the third of the shots.

JC Fernandez

Back to the Future Part II mistake picture

Revealing mistake: In the scene where Doc Brown is following Biff into the tunnel, as Marty starts to pass between the cars on his hoverboard, one of the wheels on the rig supporting the hovering DeLorean is visible. (01:30:30)

More mistakes in Back to the Future Part II

Biff: Look, Lorraine, you walk out that door and I won't only cut off you, I'll cut off your kids.
Lorraine: You wouldn't!?
Biff: Oh, wouldn't I? First your daughter, Linda. I'll cancel all her credit cards. She can settle her debts with the bank all by herself. Your idiot son, Dave. I'll get his probation revoked. And as for Marty. Well, maybe you liked to have all three of your kids behind bars just like your brother Joey. One big happy jailbird family.

More quotes from Back to the Future Part II

Trivia: When Doc and Marty arrive back in 1955 to stop the handover of the Almanac, there are 4 versions of the time machine in the area at that time - the one they just arrived in from the alternate 1985, the one Marty arrived in from the original 1985 in the first film, the one Biff arrived in from 2015 in the second film, and the one Doc buried in 1885 in the third film.

Jon Sandys Premium member

More trivia for Back to the Future Part II

Question: What song does Marty play on his guitar in 2015 after he gets fired?

Answer: He is attempting to play the song "The Power Of Love" by Huey Lewis and The News. He was first seen playing it very well in the first Back To The Future movie when he was trying out for the school dance. Jennifer recognizes the song and is shocked that Marty who was so good at guitar was suddenly able to hardly play it.

More questions & answers from Back to the Future Part II

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