{audio}mp3/Exorcist-theme.mp3{/audio}     Summary: Novelist William Peter Blatty based his best-seller on the last known Catholic-sanctioned exorcism in the United States. Blatty transformed the little boy in the 1949 incident into a little girl named Regan, played by 14-year-old Novelist William Peter Blatty based his best-seller on the last known Catholic-sanctioned exorcism in the United […]