10 Craziest Cinema Demands Made By Hollywood

10. William Castle Installs Vibrating Seats

William Castle's movie gimmicks were legendary and have inspired the work of directors like John Waters and Joe Dante.

He was cinema's greatest showman, promoting his schlocky B-movies with all manner of fun stunts. One of his best known was the "Fright Break" during 1961's Homicidal. Castle promised that anyone too scared to see the end of the film could be refunded, so long as they sat in the bright yellow coward's corner and signed a declaration that they were "a certified coward".

His most infamous stunt was Percepto!, a cinema chair rigged with buzzers, operated by the projectionist at the right moment in 1959's The Tingler. To set the scene, Vincent Price plays a scientist who has discovered a parasitic creature that feeds on fear. The creature inevitably breaks loose towards the climax of the film.

Here, the image goes black and Price's voice warns viewers that the Tingler has been unleashed inside the cinema! Cue buzzing seats being activated left, right and centre to the shock and delight of audiences.

The Tingler, and Percepto! still do the rounds at horror movie festivals to this day.