The Hills Have Eyes (the remake) scared me for weeks.
The Shining, only because of the scene with the woman in the bathtub.
Deliverance, because of the "squeal like a pig" thing.
30 Days Of Night, because of the scene where the one vampire goes "Sorry...no God."
The Exorcist. I have to fast forward through the part where Reagan masturbates with the cross. I didn't know that happened the first time I watched it and I was basically sick.
Pet Sematary actually made me cry, and I
never cry over horror movies.
Graveyard Shift. It's about mutated rats infesting a cotton mill. Basically a gorefest.
The Strangers, I just thought it was really creepy.
The movie based on the Dead Space video game. Even though it's animated, goriest movie I've ever seen. Christ.
Creepy as hell.
And then there's Saving Private Ryan. I can't bring myself to watch that movie a lot because I cry through the whole thing. The first twenty minutes just gut me.