Ghosts can even terrify the movie tough guys - like Jean Claude Van Damme, who still shivers when he remembers seeing a ghost in a bathroom mirror. 

The Belgian actor is still wary of brushing his teeth in front of the mirror after his frightening experience. 

He recalls, "I suddenly felt very cold. I turned round and thought, 'I've had a vision or something'. It was blue and white and had a very smoky body. Since that moment I've believed in ghosts."