20. 'Donnie Darko' (2001)
"Do you believe in time travel?" Jake Gyllenhaal, in his breakout role, plays a disturbed teenager who starts getting warnings about the end of the world from a guy in a rabbit costume. This cult film by Richard Kelly is a puzzle about alternate universes and suburban vortexes; no matter which cut you watch, you still get a moody, trippy slice of high-school alienation and the best use ever of Tears for Fears' "Mad World."