What's the scariest movie you've ever seen? By scariest movie you've ever seen now, but when you saw it. Like the movie you saw when you were 5 may have not scared you as much as what you'd watch now. Not neccesarily the most pop-outs, but just scared you the most. I'll give my answer as an example.
I think the scariest movie I ever saw.. was probably Stephen King's It. Man, that movie was so scary. I used to half expect to look out the window and see Pennywise staring at me. I'm still scared of the dark to an extent because of that movie.