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
Pazuzu (The Exorcist) the young Regan is uncredited, the possessed Kokumo was played by Joey Green, and all of Pazuzu's dialogue in the film is provided by Karen Knapp. "The Exorcist III" is the only film in which Pazuzu does not have a physical manifestation, though it still does have a few lines of dialogue, which are voiced by Colleen Dewhurst. In "Exorcist: The Beginning" and "Dominion: Prequel to the Exorcist", the victims possessed by Pazuzu are played by Izabella Scorupco and Billy Crawford respectively, and the voices of Pazuzu are Rupert Degas in the former film and Mary Beth Hurt in the