In “The Truman Show,” Jim Carrey’s character, Truman, learns that his entire life is a lie and that he is the subject of a reality TV show. Before the film even hit theaters, a similar real-life scenario was taking place in Japan: Nasubi, a 22-year-old aspiring comedian, became an unwitting participant on a twisted reality show. A new documentary explores the show and its impact. Michelle Miller reports. Source