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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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How did the band get Marty out of the trunk of the car?

In the first Back to the Future film, Biff's cronies lock Marty in the boot of the band's car. They can't unlock the door, because Marty shouts "The keys are in the trunk!" Guitarist: "Say ...
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Why was Clayton Ravine renamed Eastwood Ravine?

This is something that has bothered me for a long time, and this question question reminded of it and motivated me to ask it here. At the end of Back to the Future III, we see that the ravine ...
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Which 2015 technologies were correctly predicted by Back to the Future II?

This year is not only the 30th anniversary of the Back to the Future  franchise as a whole, but is also the year in which Back to the Future II  is set. Which technologies that exist in ...
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Why does Doc ask Marty “Never?” when Marty tells him George had never stood up to Biff?

In the first movie of the Back to the Future trilogy, when Marty comes back from the "Enchantment under the Sea" to get sent back to the future by Doc, he tells Doc that his father stood up for ...
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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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Why was Marty fired in 2015?

In Back to the Future Part II, when Jennifer was in her future house in 2015 she witnessed the old Marty getting fired after being provoked by Needles into sticking his card in the slot. What kind of ...
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How did Doc get into the DeLorean?

(First of all - kudos to WadCheber for inspiring this question) When the DeLorean is first revealed, we see it exiting from Doc's Truck: In the image I've given ...
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Why did Doc build the Time Train?

A thought just struck me that from Back to the Future II onwards, Doc was quite adamant of the need to destroy the DeLorean, not because it was a bad car or anything, but because the risk of time ...
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Why was Marty present in his jump to 2015 in Back to the Future 2?

I was doing some thinking about the paradoxes that arise during Back to the Future 2 when Marty, Doc and Jennifer travel to 2015 to see their future selves and help Marty's kid. It was shown that ...
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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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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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Back To The Future: moving in time but not in space?

Every time the DeLorean travels in time, it appears in the same place as the place it left. But that's the same place relative to the Earth's surface. In space-time terms, that point is constantly ...
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How did Doc Brown's last time-travel machine power its flux capacitor?

At the end of Back to the Future III... But where did this time machine get the requisite 1.21 Gigawatts of electricity, if the Mr. Fusion was attached to the DeLorean and the Doc had to work with ...
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Where did Marty hit his head?

I watched Back to the Future last night, for the first time in years, and I noticed something that I had never taken note of before. The nature of Marty's injury from being hit by a car is ...
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Why did the time circuits default to 1885?

In Back to the Future II, on November 12 1955 the DeLorean with Doc in it gets struck by a bolt of lightning, sending him back to 12 AM 1 January 1885. The potential for this is alluded to previously ...
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How old is Emmett Brown in 1985?

In Back to the Future Doctor Emmett Brown is seen in 1955 and 1985 as appearing roughly the same age. While there are people that age very gracefully like this (William Shatner for example), this ...
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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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Why did Marty ask Doc if they had made it in BTTF2 after returning to 1985 from 2015?

In Back to the Future Part II, when Marty and Doc return from 2015 to 1985, Marty asks Doc: Did we make it? Are we back? Why did he ask that? Did he have doubts that the time machine was working? ...
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Wasn't the Gray's Sports Almanac supposed to be thicker? [duplicate]

If there was really such a book that contained all sports results (football, baseball, races etc.) within 50 years, wouldn't it be a little bit thicker than just a magazine size? Maybe something like ...
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Why didn't Old Biff keep the time machine?

In Back To The Future Part 2, Old Biff steals the DeLorean, gives the sports almanac to his younger self - and then helpfully returns the DeLorean to the same spot as he took it from, just a few ...
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What memories did “Old Marty” have in 2015 of his time travel adventures?

In Back to the Future II, young Jennifer from 1985 sees Marty McFly and his family in 2015, observing that Marty and Jennifer are married & their son is a slacker, watching various future ...
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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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Wouldn't giving the Grays' Sports Almanac to Biff change the outcome of the games after 1955?

In Back to the Future - Part II, Biff brings a copy of Gray's Sports Almanac back to his earlier self in 1955. Old Biff: [about the copy of "Grey's Sports Almanac" from the future] The information ...
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1answer
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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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What happened to Marty-A and Doc-A?

So, in Back to the Future Part II, Biff steals the time machine in 2015 and gives his 1955 self future knowledge, causing the timeline to change and create 1985-A, in which Marty has been shipped off ...
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What happened to the other characters in the 1985 “Biff-timeline”?

In Back to the Future 2, Jennifer is left on a swing at her house and reality changes around her. But what happens to all the other main characters, especially the McFly family? I know Lorraine is in ...
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In Back to the Future Part II, how does Doc avoid creating a paradox?

In Back to the Future: Part II, Doc Brown discovers that the McFly family is destroyed in the future, and it can all be traced back to Marty, Jr. agreeing to some proposition by Griff and his gang. So,...
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1answer
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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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Why don't Marty and Doc Brown use petrol from the Delorean in the mine in BTTF3?

In the third movie Marty finds the Delorean in the mine and travels from 1955 back to 1885 to rescue Doc Brown. However once they establish that petrol hasn't been invented and won't be for a long ...
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Where did 2015 Biff hide the Delorean in 1955 when giving himself the Almanac in BTTF 2?

With the 30th anniversary of the Back to the Future trilogy this year, and several networks showing it, I watched all three for the umpteenth time (and enjoyed every second of them), but wondered ...
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How did Doc manage to build the time train in the 1880s?

There has already been a question about why Doc built the time train. My question is how he did it. Doc clearly could not fix the DeLorean to return back to the future. Thus, he hid the car in the ...
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Why didn't Doc Brown want to bring Clara to the future?

So in the third movie he falls in love with her. He does not want to leave her neither take her with them. He is saying the usually "we shall not change the timeline" stuff. But in fact they already ...
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How is the DeLorean powered in the final trip back in time in Back to the Future III?

When Marty McFly is attempting to time travel to 1885 with the help of the 1955 Doc Brown and the uncovered time machine from the mine, what is used to generate the 1.21 gigawatts of electricity for ...
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Why didn't Doc remember Marty's outfit?

In Back to the Future 3, Doc (from 1955) sends Marty back in time wearing a cowboy outfit. But then, Doc (from 1885) doesn't remember that it was him who offered this outfit to Marty. Does this ...
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Were there two DeLoreans in 1885?

Ok, in November 12, 1955 Marty watches the leap to 1885 of Doc Brown (the lightning bolt), then immediately receives the letter from Doc, and travels back to 1885 to save him. Marty arrives on ...
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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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Is there any significance to the date November 5, 1955 in Back to the Future?

Is there any significance to the date November 5, 1955 that was choosen in Back to the Future? Is it one of the directors birthday or something like that or were there specific real life events that ...
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In Back to the Future, why was the power required to travel in time 1.21 jigowatts?

I asked why the speed was 88 MPH, and it made a lot of sense. Now I want to ask: Why does the Flux Capacitor need 1.21 jigowatts to travel in time? Is this a magic number?
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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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Was Doc dead in 2015 in the original timeline?

In Back to the Future Part II, Doc tells a lot about the future of Marty's family. However, he doesn't mention what happened to himself in 2015. Was Doc supposed to be dead in 2015 (if he had never ...
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In Back to the Future Part II, why is old Biff in a lot of pain?

In Back to the Future Part II, there is a scene where old Biff exits the DeLorean. Here he seems to be in a lot of discomfort. He breaks his cane too. He just made himself a rich man, shouldn't he ...
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What's behind the Enterprise's flux capacitor?

Whoa. In "Hollow Pursuits" we have this dialog (emphasis mine): [Troi's office] BARCLAY: I just didn't know what to say. TROI: What do you wish you had said? BARCLAY: I should ...
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How did the Hill Valley clock tower break?

We all know that in Back to the Future, the clock in the Hill Valley clock tower was broken when lightning struck it on Saturday, November 12, 1955, at 10:04 P.M. It was this event that was key for ...
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Was the “future” world predicted in Back to the Future 2 intended to be genuinely predictive?

The Back to the Future series of SF films are also arguably somewhat comedic as well. In Back to the Future Part II, Marty travels to the year 2015 and we, the audience, get to enjoy a spectacle of ...
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Do any other dates in Back to the Future have any significance out of universe other than November 5?

In this related question we see that there could be an out of universe significance to the date November 5. But what about the other dates? I've listed them below. Is there any evidence indicating ...
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Why did the old Biff choose to travel into 1955?

In Back to the Future Part II, it was mentioned that Biff turned 18 in 1958. That's when he placed a bet on races and won his first million. So why did the old Biff give the younger himself the ...
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Does the DeLorean have a spare tyre?

I can't remember seeing a spare wheel for the DeLorean in Back to the Future (any of them). Doc pulls his suitcase out of the front trunk but there isn't much room in the trunk space. Bearing in mind ...
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Did Doc Brown replace the stolen plutonium?

The second voice we hear in "Back To The Future" (after a radio commercial for Toyota cars) is a TV newsreader describing an alleged theft of some plutonium which was now believed to be a simple ...
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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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What happens to the second Marty at the end of Back to the Future?

In Back to the Future (the original movie), Marty comes back from 1955 10 mins early to prevent Doc from being shot (which he fails at). He then rolls up to the Lone Pine Mall and sees himself hit 88 ...