Cocaine: One Man’s Seduction, Duel, Trilogy of Terror, The Initiation of Sarah, Born Innocent, A Vacation in Hell, Hostage Flight- with an original ending deemed so horrible, they changed it for later viewings
I used to love the old trailers/previews for movies when they'd have some spiel like..This movie is so scary audience members must sign a waiver that if they die of fright during the movie, the theater will not be held responsible.
That seems like the good old days now that I think about it.
One of my favorites was the 1967 film “It!” starring Roddy McDowell.
Short Walk to Daylight.