9 Behind-The-Scenes Occurrences That Make Famous Horror Films Even Scarier

9. Rosemary’s Baby: The Producer Believed He Was Cursed

Roman Polanski's Rosemary’s Baby is a horror classic that courted controversy both on and off the set, something which has happened more than once where films about the spawn of Satan are concerned.

Krzysztof Komeda, the movie's composer, died of a brain clot one year after the film was released, the same fate which befell Maurice Evans's Hutch in the story.

No doubt this was a sad coincidence, but Rosemary’s Baby producer William Castle believed sinister forces hung over the project. He received chilling hate mail when the movie was released, and one piece in particular got under his skin.

The letter read: “Bastard. Believer of Witchcraft. Worshipper at the Shrine of Satanism. My prediction is you will slowly rot during a long and painful illness which you have brought upon yourself.”

Not long after this, Castle began suffering from debilitating heath issues and was utterly convinced this was the result of a curse placed on him by the author of that note. During a trip to the emergency room courtesy of kidney failure, the producer reportedly blurted out “Rosemary, for God’s sake, drop the knife!”

He later died of heart failure.