[Nosferatu@Cult Labs]

FILMS ABOUT A DEMON OR DEMONS

1. The Exorcist
2. South Park: Ros Bigger, Longer and Uncut
3. The Exorcist III
4. The Evil Dead
5. Prince of Darkness
6. [REC]
7. The Devil Rides out
8. The Devil and Daniel Webster
9. Demons
10. Häxan

I thought about including Rosemary's Baby but decided that, despite being about the birth of the Antichrist, is more about witchcraft than a demon or demons.