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Questions tagged [back-to-the-future]

Back to the Future is the first film (1985) in a trilogy of time travel movies that branched out into an animated TV series, theme rides and video games. This tag can also be used to refer to the Back to the Future franchise as a whole.

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1answer
300 views

Why didn't Doc Brown send the letter to his house in “Back to the Future Part III”?

We all know how the movies happen at the end of Back to the Future, Part II and the beginning of Part III. Western Union delivers it at some road next to a sign for future housing development. Marty ...
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1answer
275 views

How could Marty not see Biff stealing the DeLorean?

In Back to the Future Part II, when the old Biff steals the DeLorean in 2015, Marty is just a few yards away. He might not have seen it because he was looking at his future house, but he must have ...
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1answer
2k views

How does the flux capacitor work? [duplicate]

Possible Duplicate: Is Back to the Future flux capacitor a capacitor in the first place? I'm not aware of any official explanation as to how the flux capacitor works, why it requires 1.21 ...
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0answers
357 views

Back To The Future: Why should Marty fade at all?

Other threads have posed the existence of "meta-time" at right-angles to ordinary time, allowing for a single universe in which time can be changed, but resolving the paradoxes. On that basis, however,...
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0answers
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Why is DeLorean cold upon arrival to a destination time? [duplicate]

What makes the time machine drop its surface temperature once it arrives to a destination time? Why is it so cold? Shouldn't it be all hot instead due to a 1.21 gigawatt energy influx?
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3answers
5k views

How is Doc still alive if he was shot back in 1885?

In Back to the Future: Part III, we see the grave of Doc. If Doc. Emmet L. Brown is dead and has a grave, then how come he is still alive and kicking in 1885? If he is alive because Marty went back ...
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1answer
212 views

What happens when you don't enter a time in the time circuits?

The time circuits in the DeLorean have the capacity to enter times and dates. My question is then: if you were to enter a date and not a time, what time would you arrive at on the specified date?
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1answer
724 views

Does the BttF time travel require fuel/power?

After seeing this question about the time-travelling range of the DeLorean, the consensus was that it was merely restricted by the controls (a 4 digit number, giving it a range of 0-9999). However, ...
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1answer
245 views

Biff To The Future Time Travel Paradoxes

In the comic book series Biff to the Future, Doc Brown and Mr. Strickland go back in time, Doc to stop Biff’s parents from getting married and Strickland for reasons I can’t tell. Also, Biff goes to ...
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1answer
243 views

Had Doc Brown been looking for Marty all week?

During the opening scene of BttF, Doc calls his own lab to tell Marty about the experiment he wants to show him that night. From a transcript: Marty: You know, Doc, you left your equipment on all ...
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0answers
300 views

Did Doc sleep with Clara the night of the festival?

In Back to the Future Part III, after the festival, Clara is showing Doc craters on the Moon through her telescope. Afterwards they start talking about their favorite writer, Jules Verne. Then they ...
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0answers
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Why was Doc Brown surprised at how Marty was dressed upon arriving in 1885? [duplicate]

I mean, he chose the clothes, albeit 30 years prior from his perspective, it doesn't seem that forgettable.
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2answers
356 views

Why didn't Marty's “you're fired” note fade away as soon as 2015 Biff changed the timeline in 1955?

In Back to the Future 2, Marty gets fired for doing something illegal. Several notes reading "you're fired!" were faxed to him. At the end of Back to the Future 3, Marty avoids the car crash and thus ...
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1answer
179 views

Back to the future: but exact same space? Which part of car computes? [duplicate]

Movie series show that Dr. Emmett Brown can adjust time machine to go a somewhat selectable/quantized time in future or past. Especially "today but exactly N years ago" quote seems to be showing a ...
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0answers
91 views

Does “Star Wars” still exist in “Back to the Future”? [duplicate]

In Back to the Future, when Marty goes back to 1955, he scares his dad by saying he’s “Darth Vader from Vulcan”. Obviously Darth Vader didn’t exist in 1955 as Star Wars didn’t come out for another ...
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0answers
763 views

How did Doc travel to 1885 if he wasn't travelling at 88 mph? [duplicate]

In the Back to the Future universe, we know what is needed for time travel: a flux capacitor, 1.21 gigawatts and a travel speed of 88 miles per hour (I know there are more requirements than that but I ...
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0answers
94 views

How many DeLoreans were there in 1955? [duplicate]

In Back to the Future, we see Doc and Marty repeatedly returning to 1955. But they weren't the only ones. Biff meets his younger self, and a DeLorean waits hidden in a cave. So am I correct in ...
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1answer
607 views

Why did Marty blow up the amplifier in Doc's place?

Why did he blow up that amplifier? There was no point in doing such anything..... Just curious...
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1answer
249 views

Is the DeLorean locked to the Pacific Time Zone?

Suppose the Doc or Marty drove the DeLorean to Arizona, which is one hour ahead of California, and then set the time coordinates for one hour ahead. Would the car realise that the local time had ...
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1answer
395 views

When Marty travels back to the future, why are not there two of him in 1985? Or they indeed are? [duplicate]

When Marty travels back to 1985 from 1955 at the end of the 1st BTTF movie (and meets his all new present), aren't there two Marties in that moment (the one that has just arrived and the one that was ...
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1answer
412 views

So what was the secret behind the stainless steel of Doc's Delorean? [duplicate]

"If your going to build a time machine why not do it with some style besides the stainless steel construction made the flux dispersal.....watch out!" He never got to finish his statement what was he ...
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2answers
318 views

What kind of paradox is this? [duplicate]

I was wondering something regarding the Back To The Future movie: Marty McFly is on stage and he's playing Johnny B. Goode. Marvin Berry phones his cousin Chuck Berry (the person who wrote the song). ...
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1answer
335 views

Why weren't Marty2 and Biff at the stairs in BTTF?

In Back to the Future, when Marty takes Lorraine to the dance there is no-one at the stairs when he drives in... But in BTTF2 it's revealed that another Marty and Biff were at the stairs the same ...
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1answer
146 views

How many references to time are there in the first 10 minutes of Back to the Future?

I just have to list how many times the references to TIME in the first ten minutes of Back to the Future. How many are there?
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2answers
217 views

Why did Jen show Doc Brown the note?

Why did Jen show Doc Brown the note that was in her pocket? She knows what happened, plus she didn't even know she would see Doc there, so does she just carry it around in case she ever bumps into him ...
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1answer
391 views

When does the lighting hit the clock tower so Marty 1 goes back to 1985 while Marty 2 burns the almanac and learns Doc is in 1885?

In Back to the Future II, Marty and Doc go back to 1955 to get the sports almanac from Biff to save the future while trying to avoid their younger selves. When they succeed they burn it while the ...
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1answer
160 views

Does this shadow belong to future Marty, trying to get the almanac?

In Back to the Future II, right when Marty sings "Johnny B. Goode" I spot a shadow in the distance on the right; there's a shadow on the shell. I thought it was the other Marty trying to get the ...
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1answer
836 views

How did Einstein get back from the future if he can't drive?

In the first back to the future, Einstein, the dog, gets sent forward in time by 1 minute. If you have to reach 88 miles per hour, how did he get back? He can't drive a car, he's a dog.
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5answers
404 views

How could Biff vividly remember the date within 30 years?

In Back to the Future Part II, in 1985A Marty asks Biff about the sports almanac. Not only does Biff remembers the exact date when he got the book - November 12, 1955 - but also tells Marty that he ...
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1answer
8k views

Where did Doc Brown get plutonium from?

In the beginning of Back to the Future, Doc Brown apparently steals plutonium (from a government facility?) to power his time machine. How does he steal it? Plutonium is a highly sensitive material ...