The Exorcist (film series) search for the missing footage is "ongoing". An upcoming book titled "The Evolution Of William Peter Blatty's The Exorcist III: From Concept To Novel To Screen" by author Erik Kristopher Myers will reveal the whole story behind the film's development, and publish never-before-seen images, the original script, studio notes, various drafts of the story as it has evolved, and interviews with Blatty, Brad Dourif, Mark Kermode, John Carpenter, and many others associated with the film. Myers in an interview said that "The Exorcist III" "has sort of turned into horror genre’s equivalent to Orson Welles' "The Magnificent Ambersons", in that
The Exorcist III film), as the protagonist. Blatty conceived "Legion" as a feature film with William Friedkin, director of "The Exorcist", attached to direct. Despite the critical and commercial failure of the previous sequel, Warner Bros. was keen to proceed with Blatty and Friedkin's plans for another "Exorcist" film. Blatty said that "everybody wanted "Exorcist III"... I hadn't written the script, but I had the story in my head...and Billy [Friedkin] loved it." Friedkin, however, soon left the project due to conflicting opinions between him and Blatty on the film. The project went into development hell, and Blatty wrote "Legion" as a novel