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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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Can the Delorean meet its speed requirement without moving?

Everyone knows that to time travel, the Delorean had to "hit 88 MPH". Watching the movie right now though, got me wondering... When Doc first demonstrates the time machine to Marty, he holds the ...
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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 ...
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In Back to the Future, why was the speed 88 miles per hour?

Why not use 89, maybe 100 miles per hour? Is 88 the fastest a DeLorean can go? In other metrics, I have: Miles per hour 88.00 [mph][mi/h] Miles per second 0.0244 [mps][mi/s] Yards ...
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Where is Hill Valley?

Many BTTF fans know that Marty, Doc and Jennifer arrive in Hill Valley on October 21st 2015, and were eagerly awaiting that date. As outlined in this question, they arrive at 4:29PM. However, the ...
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Can Marty McFly ever truly return home?

In the Back to the Future trilogy, the character Marty McFly travels back in time, and meets his own parents. In doing this, he directly changes the outcome of many things including the relationship ...
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Why was the DeLorean in Back To The Future not always covered in ice after time travel, and why didn't it fly in 1885?

I have noticed some things that I can't understand in the Back To The Future films about the DeLorean. In part I, when Einstein is sent 1 minute into the future the DeLorean comes back completely ...
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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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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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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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Why does the number “99” appear (backwards, spelled in airborn fire) in Back To The Future part 2?

It seems to be a commonly accepted theory that the car skidded before going back to 1855. However, the car didn't really seem to skid, so much as explode. It certainly didn't appear to move in such a ...
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Why didn't Marty's erasure continue?

At the end of Back to the Future, Marty goes back to the future. He then finds This is almost completely different from the timeline he left. Earlier in the film, he's trying to get his parents ...
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How could our heroes & old Biff switch timeline while keeping Almanac with young Biff?

In Back to the Future 2, old Biff stole the time machine in 2015 and went back in time to give an Almanac to young Biff. At the point of giving the Almanac to young Biff in 1955, he altered the future ...
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Who invented Darth Vader? George Lucas or George McFly?

In Back to the Future, Marty famously frightens his father into action in 1955 by pretending to be Darth Vader from the planet Vulcan: Presumably, Star Trek and Star ...
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Why did Doc Brown choose the Delorean DMC-12 as his first time traveling vehicle?

According to wikipedia, the movie makers decided The specific choice of vehicle was a DeLorean DMC-12 for the purposes of it looking like an alien spaceship due to its characteristic gullwing ...
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Why did Doc need to use a moving car to achieve 88mph?

88mph is an important speed to screw the space-time continuum. But, motion is relative... Hey doc, can you please explain 88mph relative to what? What we see in the movie: it was the speedometer ...
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Is Back to the Future flux capacitor a capacitor in the first place?

English is not my native language and I only watched the dubbed version of Back to the Future and there the "flux capacitor" was translated to mean something like "flux storage" - literally a unit ...
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How many DeLoreans existed at the same time?

How many copies of the DeLorean time machine co-existed in the Back to the Future series?
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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 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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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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Does Gray's Sports Almanac 1950-2000 actually exist?

So, the main plot device in Back to the Future II (aside from the DeLorean) is Gray's Sports Almanac 1950-2000. As we're now in 2015, the statistics must be available, so my question is does the book ...
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How did Chuck Berry come up with Johnny B. Goode in the original timeline?

In Back To The Future II, we learn that traveling forward in time, after having altered the past, lands the traveler into an alternate present or future compared to the one they originally left. (...
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Why were all of Doc Brown's clocks slow?

At the start of Back to the Future there is an exchange between Doc Brown (on the phone) and Marty, who is in Doc's lab, during which all of Doctor Brown's clocks start to chime. Doc Brown explains ...
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How did the DeLorean travel to 1885? [duplicate]

At the end of Back to the Future II, a lightning bolt hits the DeLorean which sends it back to 1885. At the time though, the DeLorean wasn't moving; it was relatively stationary hovering in the storm....
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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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Back To The Future Flaw - why don't Marty's parents recognize him in the new future?

I believe I've spotted a flaw, and I'd like to know if other fans have noticed it too. In the first BTTF, Marty McFly travels back to 1955 (his parents' high school era). He meets his mother and she ...
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How long was the Back to the Future trilogy from Marty's point of view?

The title pretty much says it all. From the start of Back to the Future, how much time passed for Marty by the end of Back to the Future III?
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Does the DeLorean have any restrictions regarding time travel range?

I'm just wondering whether the DeLorean time machine has any restrictions on how far into the future or how far into the past it can travel. Inspired when I was considering an earlier question of ...
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Back To The Future: Time Travel Paradox

In Back to the Future, to get Marty back to 1985, it looks to me like the Doc connects a cable to the pole with the weather vane on top of the clock tower and fastens the other end to a light pole on ...
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When does Marty Travel to in the future?

I have seen all sorts of posts on the Internet about when he travels to, but most of them are doctored to make people repost them. I originally saw one picture that showed the deLorean dash showing a ...
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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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What is the science-fiction tradition of flying cars having their wheels turned sideways?

The DeLorean in Back to the Future turns its wheels sideways when it is about to fly. Also, there are many children's toys that feature similar concepts, such as this Lego kit, which features two such ...
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Why didn't doc and Marty just add a small metal plate or something to the old Delorean?

In the third Back to the future movie, Marty digs up a 70-year-old Delorean in a mine, and uses it to go back to 1885. Then, upon arrival, he gets his fuel tank pierced and it leaks all the fuel, ...
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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 the Doc refuse to let Marty tell him about the night Marty went back to 1955?

On more than one occasion in Back to the Future, Marty tries to warn 1955-Doc that he will be shot on the night he tests the DeLorean. The first time, he tells Marty to shut up and says something ...
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Was Doc Brown about to break his own rules?

Richard's comment on this question made me realize that Doc Brown seems to be a bit hypocritical. Allow me to explain. The whole reason Marty ends up in 1955 (as opposed to any other point in time)...
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Was the locomotive hijacking in Back to the Future III really needed?

So we see Marty eventually travel back to 1885 using the Delorean that Doc hid in the mine, and we also see it being hit in the fuel tank by an arrow, hence crippling its ability to get itself up to ...
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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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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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Is there anyone Strickland doesn't think is a slacker?

Throughout the Back to the Future series, we see that Strickland, sorry, Mr Strickland calls Marty a 'slacker' and George a slacker, even the guys shooting at his house are slackers. Do we know of ...
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Why was Marty the last child to fade out?

As we know, Marty McFly from Back to the Future is the third child in the McFly family in 1985. In BTTF I we see in the picture of all three children that they progressively fade out. I understand ...
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Is the BTTF Series of games considered canon?

After playing the five episodes in Back to the Future: The Game, I was wondering if these are considered to be canon. They appear to be set after the events of the movie trilogy (as Marty knows about ...
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Why was the tender still attached?

Apart from the opportunity for Clara Clayton to have an exciting traversal of the distance between the back of the fuel tender and the engine (Golly!) in Back to the Future III: Was there any reason ...
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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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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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If Back to the Future uses different timelines, why did Marty begin to fade?

I think it's well established that for the basic premise in the Back to the Future Trilogy to work, we have a system of alternate timelines. If this is the case though, then why would Marty in Back ...
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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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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, ...