Fat Kid Rules the World is a 2012 American comedy-drama film directed by Matthew Lillard in his directorial debut. It is based on the book of the same name and stars Jacob Wysocki, Matt O'Leary, and Billy Campbell.
17-year-old Troy Billings (Wysocki) is overweight and suicidal. He's saved by Marcus (O'Leary) from jumping in front of a bus and begins an uneasy friendship with Marcus. Marcus then enlists the musically challenged Troy to become the drummer in a new punk rock band. As Troy's relationship with Marcus grows, Troy's father (Campbell) becomes increasingly concerned about his son's new friendship.
Fat Kid Rules the World received positive reviews from critics, earning an 84% approval rating on Rotten Tomatoes.