Hands down The Exorcist. As a child, a babysitter let me and my sister watch it and it was one of the most frightening things I’ve ever seen. The head spin made me jump. As of late though, I don’t scare easily unless it’s a cheap jump scare. But a movie called Wolf Creek freaked me out and Hostel 1/2 are simply sick and terrifying.
I watched The Exorcist the other day because it’s probably the best Mother’s Day movie ever made. ;)