Mad Ron's Prevues from Hell is a movie screening for a theater full of the undead. There are several dozen previews though out of horror and exploitation films. Seriously though, the previews themselves are often disturbing (often for many different reasons) so if you can't handle the preview, I'd avoid the movie. This list is for fun and NOT a recommendation list.
Some movies are known under multiple titles. I Dismember Mama(1972) is AKA Poor Albert and Little Annie. The Thrill Killers(1964) is AKA The Maniacs are Loose! Horror of the Zombies(1974) is AKA The Ghost Galleon. Silent Night, Evil Night(1974) is AKA Black Christmas. Horror on Snape Island
(1972) is AKA Tower of Evil. Wildcat Women(1975) is AKA The Black Lolita. Carnage(1971) is AKA Bay of Blood
