#2. Back to the Future (1985)
The Setup: By accidentally taking his pops’ place in the past, Marty McFly nearly erases himself (and his family) from a future existence. Also, he invents modern rock music with the help of Chuck Berry’s cousin.
What it says about time travel
Basically, that we can leap to the past and influence the future – very specifically, and calculatingly, for better or worse.
Real life time travel theory in play: The Time Machine
Doc’s DeLorean operates on the idea that a machine can bend space-time so far that it closes in on itself and creates a loop. Then, in theory, the time traveler races around inside the loop, going further back into the past or forward into the future with each 88mph lap.