13 Iconic Horror Movies Inspired by Real-Life Events

What's real: Eric Bana's character in this film is inspired by a real man named Ralph Sarchie. USA Today pegs him as a retired police sergeant and "self-described demonologist assisting in spiritual exorcisms." Actually, Sarchie has written his own book about his various paranormal experiences. It's called Beware the Night, and it served as a foundation for Deliver Us From Evil. While the events of Sarchie's book are difficult to verify and easy to question — Sarchie himself says he encounters a lot of skeptics — he insists they chronicle his real experiences and beliefs.