Production Credits: Director: William Friedkin Producer: William Peter Blatty and Noel Marshall Screenplay: William Peter Blatty Cinematographer: Owen Roizman Country of Origin: USA Year: 1973 Running Time: 122 minutes or 132 minutes (Director’s cut) Principal Cast: Ellen Burstyn, Max von Sydow, Lee J. Cobb, Kitty Winn, Jack MacGowran, Jason Miller, Linda Blair If you are a horror movie fan, you will definitely know this movie. Considered a masterpiece by many, and by some the scariest movie ever made. In 1973, 'The Exorcist' made its appearance, full of gore scenes and heavy suspense. Each person that watched it didn't know what happened behind the scenes. The Exorcist is based off a real life event. William Blatty (the author of the novel), was inspired by a real exorcism that happened with a boy called Roland Doe. The exorcism was performed by catholic priests at Georgetown University Hospital, but they had to stop when Rolland managed to ...