I can't really think of cases where movies freaked me out while watching them, but two specific stories about being freaked out later in the day come to mind. My mom said that she found me in the middle of the night trying to climb out a window after we had watched Arachnophobia earlier that day. I really don't remember anything from that movie, but I guess it messed with my 10 year old mind. The other was Blair Witch, which I absolutely hated. I was annoyed and bored while in the theater, but later when I was driving through a pretty remote area in Eden by myself, I remember being creeped out a bit.