Exorcist II: The Heretic the Book of Job; it's God testing the good. In this sense, Regan (Linda Blair) is a modern-day saint — like Ingrid Bergman in "Europa '51", and in a way, like Charlie in "Mean Streets". I like the first "Exorcist", because of the Catholic guilt I have, and because it scared the hell out of me; but "The Heretic" surpasses it. Maybe Boorman failed to execute the material, but the movie still deserved better than it got." Author Bob McCabe's book "The Exorcist: Out of the Shadows" contains a chapter on the film in which Linda Blair said the movie
Pazuzu (The Exorcist) to take complete control of her mind. However, with the aid of the priest Father Tomas and her family, Regan fights back against Pazuzu, regaining control of her mind, just as Father Tomas exorcises the demon from her body. William Peter Blatty's creations of Pazuzu and "The Exorcist" were based on a heavily reported series of 1949 events in St. Louis, Missouri concerning the possession of a 14-year-old known as "Robbie Mannheim" (or sometimes "Roland Doe"). Blatty, who was a student at Georgetown University, read about the story in Washington, D.C. newspapers and created "The Exorcist" twenty years later. In