Donnie Darko
This movie is wonderful; it has mystery and a touch of horror. I find the story and its depth amazing. It's not a movie you understand the first time you see it, nor the second, but it always captivates you and keeps you hooked until the end. It has a psychological undertone, involves time travel, and deals with schizophrenia and narcolepsy. It's a work of art, one of the first films that got me into cinema.