William Peter Blatty

William Peter Blatty is the bestselling author of The Exorcist, which he turned into an Academy Award–winning screenplay. The son of immigrant parents, he was a comic novelist before embarking on a four decade career as a Hollywood writer, penning the screenplays for A Shot in the Dark, What Did You Do in the War, Daddy?, the Julie Andrews romantic comedy Darling Lili, and The Ninth Configuration (which he also directed), among many other films. A graduate of Georgetown University, he lives with his wife, Julie, in Bethesda, Maryland.