Have you ever been watching a film...
...And had that eerie feeling that you've heard the story before?
So, tell us: which movie were you horrified to learn was actually based on real-life events?
Does the fact that the house in The Amityville Horror was supposed to be haunted by an actual murdered family chill you to the core?
Or were you shocked to realise that The Exorcism of Emily Rose was based on the real-life attempted exorcism of a young woman, which resulted in her death?
Have you always been freaked out by the fact that Norman Bates' character in Psycho was inspired by a real murderer who had a fixation with his mother?
