Finally, there were rumours that Anton LaVey, who was the Black Pope of the Church of Satan, was a “technical advisor” in the film and played the devil. Some say it’s true, some say it’s a rumour. Whether or not he was on set, he was tangentially related to the cursed film. He was friends with Susan Atkins, a member of the Manson Family, who was sentenced to death for the murder of Sharon Tate, the directors wife, one year later.