Advertising Remove ads Home / Stars / William Peter Blatty / Filmography Filmography William Peter Blatty Profile Filmography 3 William Peter Blatty films and TV shows 3 films, 1973–2023 As a writer 3 2027 Out 12 March 2027 The Exorcist: Martyrs Writer 2023 The Exorcist: Believer Writer Where to watch 5.2 1973 The Exorcist The Producer · Writer · Producer Where to watch 8.6 Advertising Remove ads As an actor 1 1973 The Exorcist The Producer · Writer · Producer Where to watch 8.6 As a producer 1 1973 The Exorcist The Producer · Writer · Producer Where to watch 8.6 Advertising Remove ads