(FILES) This file photo taken on September 16, 2016 shows Linda Blair as she poses on arrival for "Halloween Horror Nights" at Universal Studios Hollywood in Universal City, California. Former child star Linda Blair frightened the wits out of a generation of moviegoers as the possessed pre-teen with a penchant for projectile vomiting in iconic horror movie "The Exorcist." But four decades on, you get the feeling she'd be happy never to answer another question about her 1973 portrayal of the demonic Regan MacNeil, a role that will always define her. / AFP PHOTO / Frederic J. BROWNFREDERIC J. BROWN/AFP/Getty Images