Memento

Memento is a 2000 film directed by Christopher Nolan, based on a short story by his brother Jonathan Nolan, following Leonard Shelby, played by Guy Pearce, a man with anterograde amnesia following an assault that killed his wife, who uses Polaroid photographs and tattoos on his own body to track clues as he hunts for her killer, unable to form new long-term memories. The film's central color sequences run in reverse chronological order, so the audience discovers each scene's outcome before its cause, mirroring Leonard's own fragmented understanding of his situation. Made on a low budget after struggling to find distribution, it became a critical and commercial success and established Nolan as a major directing talent, earning an Academy Award nomination for Best Original Screenplay.