Donnie Darko is a mind-bending science fiction film featuring Jake Gyllenhaal in the titular role. The story follows Donnie, a troubled teenager who starts experiencing strange visions and encounters with a mysterious figure named Frank, who appears to be a giant rabbit. As Donnie navigates through a series of bizarre events, the film explores themes of time travel, destiny, and the blurred lines between reality and imagination. Gyllenhaal's performance in Donnie Darko is widely praised for its depth and complexity, solidifying his status as a talented actor.