I found the Ring very disturbing - when
Plus I must have been the only person who didnt know that so that was a shocker, plus the way she walked after she got out of the well........it just got to me!
Another was the first "Nightmare on Elm Street" film. Just the fact that you can be attacked while thinking you are safely asleep. I think what made it all the more frightening for me is that I have very vivid nightmares and always have done - the fact that they might be "true" just freaks me out! I just didnt want her to open that door!