The Exorcist same name, and starring Ellen Burstyn, Linda Blair, Max von Sydow, and Jason Miller. The film is part of "The Exorcist" franchise. The book, inspired by the 1949 exorcism of Roland Doe, deals with the demonic possession of a 12-year-old girl and her mother's attempts to win back her child through an exorcism conducted by two priests. The adaptation is relatively faithful to the book, which itself has been commercially successful (hitting the "New York Times" bestseller list). John Boorman's "" was released in 1977, and revisited Regan four years after her initial ordeal. The plot dealt with an investigation
The Exorcist III instead, published in 1983. It was a bestseller. Blatty then decided to turn the book back into a screenplay. Film companies Morgan Creek and Carolco both wanted to make the film; Blatty decided upon Morgan Creek after Carolco suggested the idea of a grown-up Regan MacNeil giving birth to possessed twins. Blatty offered directorial responsibilities to John Carpenter, who liked his script; however, Carpenter backed out when it became clear that Blatty wanted to direct the movie himself and also because of creative differences regarding the ending of the movie. However, they remained friends. As per the stipulations for his