Niccol's breakthrough screenplay was his script for the film "The Truman Show" (1998), directed by Peter Weir and starring Jim Carrey. He also served as a producer on the film. The film received an Academy Award nomination for Best Original Screenplay (Best Writing, Screenplay Written Directly for the Screen) and a Golden Globes nomination for Best Screenplay in 1999 and won a BAFTA award for Best Screenplay, a Saturn Award for Best Writing or Best Writer, an Awards Circuit Community Award for Best Original Screenplay and Best Motion Picture, a Hugo Award for Best Dramatic Presentation (shared with Peter Weir), and an Online Film Critics Society Award for Best Original Screenplay.