Look both ways, friends: it’s time to open those sliding doors on the days of future past (AKA yesterday). Life is never over in a flash—it is, in fact, a never-ending story. Make some space, take some time to bring coherence to the task of listing your favorite films with alternate realities, parallel timelines and verse-jumping. Which film will be the one, the ultimate multiverse movie? It’s a paradox of parallels, so stay tuned, because you’ve got a blind chance of being spirited away beyond this dark city. Anyone fancy a bagel?

See here for more. I'm arbitrarily ruling out time travel movies which don't explicitly include changing timelines, and I'm limiting David Lynch and the Terminator franchise to one movie each.