That's part of the appeal of time-travel movies: The notion of going back and fixing something.
Memory is a form of time travel. That's something we do during the course of the day, every single day. The idea of actually being able to physically adjust that and change it instead of being haunted by it is a really human thing.
I mean, the first 'Back to the Future' is kind of a perfect script, I think, in terms of handling time travel the best. It depends on your definition. To me, that means it effectively uses it in the story.
Unlike some of the time-travel movies I love, like 'Primer' or '12 Monkeys,' 'Looper' is not about time travel. It's about this situation that time travel creates and the people dealing with that situation. So narratively, the big challenge was to have time travel get out of the way.
I think what I love about science fiction and what sci-fi can be really good at is obviously you're working with outlandish concepts that have very little to do with the real world, like time travel for instance.
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