Are you kidding? It's been like 15 years since I've seen "The Omen" and I'm still scared! I don't care for those slasher movies like Friday the 13th, but the demonic, mess-with-your-mind type movies. *cringes.*
Another movie that was creepy, in a believable/strange kind of way was
Scanners.
Man, after watching that movie I would be so afraid that someone would be "scanning" my thoughts are then controlling me.