Donnie Darko (2001)
The less said about Richard Kelly's body of work since his debut, the better – and indeed the less said about his director's cut of Darko the better – but that doesn't diminish its enduring, peculiar magic. Starring Jake Gyllenhaal as a haunted teen convinced that the world is about to end following a near-death experience, the film's power lies in just how much it leaves unexplained.