Back to the Future Part III

Question: Marty tells Doc that they are out of fuel as the fuel line ripped on the car. Wouldn't it have made more sense for them to uncover the DeLorean that Doc buried, put a piece of paper on the seat with a note saying something like... "Oh Marty, I forgot to mention in my letter that the car needs some extra fuel. Keep a can of gas with you in the car at all times" - Hey presto, Marty would have arrived with extra fuel! Now obviously I hear you shouting "continuity" and "It would be an alternate timeline like in part 2" - But that didn't stop Biff taking the car back to the 2015 Doc and Marty were in, despite Doc later saying if they travelled into the future it would be the rich Biff reality.

Answer: Although Biff in part 2 is its own set of problems, the answer to your question actually doesn't have anything to do with continuity or alternate timelines. They can't risk disturbing the Delorean that Doc burried in any way. It has to remain exactly as it is, otherwise at best Marty is stuck in 1955, or at worst they create a paradox that destroys the universe. It is best to ignore the buried Delorean, any attempts to get to it could lead to it being damaged, or even worse could lead to it being discovered in the 70 years it has to remain in that mine.

BaconIsMyBFF

Answer: It would have been easier for Marry and Doc to go down to Western Union and ask for a second letter to be delivered with the first. The letter would say "Ignore the comment in the first letter about not going back to 1885, please come to 1885 and bring some extra fuel with you"

Question: Just wanting to know about the animal running in front of the Native Americans when Marty travels back to 1885. Looks like a dog, but was it meant to be there, or was it an animal that was disturbed as they did the scene and it bolted for its life?

Answer: It is a rabbit that probably got disturbed by the filming.

Bowling255 Premium member

Question: If Doc doesn't have a gravestone in the end, how is Marty from the beginning of the movie aware that he must go save his friend in 1885 instead of jumping straight to 1985?

Answer: The BTTF universe establishes time and again that time travel does not change the existing timeline, but rather creates alternate timelines. So even if Marty changes the past, it creates a new timeline independent of the one he left. So he can erase the gravestone that led him to 1885 without causing a paradox.

Question: Doc gets Marty back home. Then seconds later Marty appears again. He shows Doc the letter he wrote. So Marty goes back to 1885 to save him. They make a big deal of having to repair the DeLorean that was buried in the cave. But why can't they use the DeLorean that Marty just used to get back to 1955?

Answer: Because Marty didn't "just" arrive, he was already there, having come back from the alternate 1985 with Doc in the previous film. The DeLorean they used to get to 1955 is the one that is struck by lightning while Marty's on the ground, and sent Doc to 1885. He cannot repair it with the resources available in 1885, so he hides it in the cave with instructions that his 1955 self will use to fix it.

Question: How did Doc power the Flux Capacitor on his new time-traveling train?

Answer: Steam, the whole thing is steam powered. He has just modified the train itself, probably making it much more efficient.

David Mercier
Back to the Future Part III mistake picture

Continuity mistake: When Marty returns to 1985, he goes to his house and gets in his Toyota pick-up. Look closely behind his head when he first gets in the truck, there is no driver-side head rest. But when he picks up Jennifer, when they pull up to the stop sign the head rest is there. (01:45:00)

More mistakes in Back to the Future Part III

Jennifer: Excuse me, Doc Brown. I brought this message back from the future and, well, now it's erased.
Doc: Of course it's erased.
Jennifer: But what does that mean?
Doc: It means your futures haven't been written yet. No one's has. Your future is what ever you make. So make it a good one, the both of you.

More quotes from Back to the Future Part III

Trivia: When filming the scene where Marty is being hanged from the clock tower, Michael J Fox agreed to really hang from the rope. Whilst filming, Fox held the rope away from his throat with his hand. At one time he wasn't holding the rope and was really being strangled. The film crew didn't realise, they just thought it was really good acting, until he passed out.

More trivia for Back to the Future Part III

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