Change one thing, change everything.
A young man struggling with the psychological effects of sublimated childhood memories devises a technique of traveling back in time to inhabit his childhood body, but he finds that every trip back has unintended results on his present self, leading him to travel back again and again, trying to repair the damage that he's only making worse and worse.
The Science and Psychology of the Chaos Theory
The History and Allure of Time Travel
The Creative Process Documentary
Visual Effects Documentary