Corrected entry: Marty gives Goldie Wilson the idea to run for mayor before Goldie thought of it himself. Suppose now that Goldie runs for mayor before he is supposed to and loses the election and it ends his political career, thereby disrupting history.
Tailkinker
24th Nov 2010
Back to the Future (1985)
19th Sep 2010
Back to the Future (1985)
Corrected entry: If everything that happens in the past, determines what happens in the future,and there in between, then wouldn't it make more sense for the picture of the family, when it starts to come back, to have them dressed differently? Such is the case when they are in the new family scene, when they come back.
Correction: This is a question, not a mistake. There's no reason why they couldn't be wearing the same clothes in the altered timeline.
30th May 2008
Back to the Future (1985)
Corrected entry: When Marty shows the video to the 1955 Doc, the 1985 Doc on the video states their location as the "Twin Pines Mall". Since Marty already knocked down one of the pines, the mall should've already been renamed to "Lone Pine Mall" on the video.
Correction: The timestream in the Back To The Future series is demonstrated as being somewhat resistant to changes; when Marty interferes with his parents' first meeting, he doesn't start to fade out for about a week after that happens. When Marty shows Doc the video, not enough time has passed for the effects of the timeline change to appear on the tape.
When someone time travels, they don't change the timeline they are from, they just create branching timelines every time someone makes a decision. This recording was made in the first timeline, so it would still be Twin Pines Mall.
That's not the case though. The photo Marty brings of his siblings fades out, newspaper headlines brought from the past/future change, etc.
Except he was slowly disappearing at the end of the movie. Which wouldn't happen if he was "branching off." They mix up linear timelines and parallel universes in these movies. They always, always screw up time travel movies.
4th Jun 2005
Back to the Future (1985)
Corrected entry: In the escape from the Libyan chasers, watch the ending of the chase. Marty already pushed the car to 90 on the analog speedometer, but the digital barely even made the jump to 88.
Correction: Analogue speedometers are not, as a rule, particularly accurate, hence Doc's choice to put in a digital version. It's not unreasonable that the two could differ in their reading by several miles per hour.
14th Sep 2004
Back to the Future (1985)
Corrected entry: When Marty saved his father from being run over by his grandfather, he had automatically altered the future. Shouldn't he and his siblings have disappeared altogether?
Correction: The timestream, as portrayed in the films, is quite resiliant and resistant to change, which is why Marty doesn't vanish immediately. As time passes in the new configuration, that resilience is overcome and things begin to disappear from the timeline, beginning with his older siblings (who are closer to the point of disruption) and ending with Marty himself. Fortunately Marty is able to get the timeline back onto a course that includes him and his siblings before that happens completely.
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Correction: So what? Marty changes lots of things during his time in the past, ranging from the very minor - Twin Pines Mall becoming Lone Pine Mall - to the really quite major - his parents' entire personalities and futures. History's already disrupted to a significant degree, one more thing, particularly one that, as far as we know, didn't happen, is hardly mistake-worthy.
Tailkinker ★
"You're not thinking fourth dimensionally!" We know for a fact that Goldie still becomes Mayor as when Doc and Marty travel to 2015, Goldie Wilson III does an ad for Wilson hover conversion systems and states "When my Grandpa was Mayor of Hill Valley..." So whether or not he won or lost the first time is irrelevant, he eventually becomes Mayor as does his son.