Well, I've been watching scarry movies for as long as I can remember....really there are not many that have effected me much. Yes, while watching I may jump but no lingering scares. So I will have to go with just a couple instances.
King Kong-when I was very young, I watched with my Gramps...everytime I went in the bathroom I thought he was going to reach through the window and get me...LMAO!!!
A vampire movie which I can't recall the name of..but there was a little boy that was turned into a vamp and was floating outside of his brothers window (I think it was a brother, it was so long ago I don't remember before and only really remember that scene). Anyway, my bedroom window was right next to a huge tree and the branches would scratch the window sometimes and scare that crap outta me, I just knew that boy was out there waiting for me to invite him in and bite me!!!
The Grundge-only one as an adult that creeped me a bit..the movie itself was not really scarey and didn't bother me while watching but I was alone and the house we lived in our bedroom was a loft upstairs with these storage closets all the way down both sides of the room, for some reason when I went to bed that night..they really freaked me out.