Just be glad they didn’t show what was actually written in the book. Let’s just say it was more than just a sledgehammer, and later, more than just a foot.
The scene at the end of Se7en where Brad opens the box.
Well fortunately I didn’t read the book. I like King but damn, that scene was just too much for me.
An oldie: Catch-22, when Yossarian discovered what was really wrong with Snowden.
The whole movie.
I rented this with my best friend when we were like 11, and it seriously freaked me out. Specifically, Snitter’s brain operation and his resulting hallucinations. And the scene at the beginning with the “endurance test” in the pool. And the part where they’re escaping from the laboratory and there’s this shot of all those rubber glove-hand things that come out of the research stations or whatever they are, just hanging down.
You can see the whole movie on youtube.
I think you mean Morgan Freeman. Brad Pitt’s character never touches the box.
I can’t really remember Boxing Helena and Dead Ringers, although I have seen them. Must’ve been some shit that was too weird even for me.
Mr.Creosote
Any one of a couple scenes from Audition.
More specifically:
The guy she had in the bag, and the sawing with the piano wire. I didn’t have nightmares or anything, but it was definitely one of the more disturbing things I’ve seen.
Everything about the Ring, but if I have to choose one scene from that god-awful scary movie, it would be the one where
the Mom comforts the little boy, telling him that yes, she found the dead little girl in the pit, but now all is good because the little girl has been found and gone into the Light, hugs and puppies and yadayada, and the boy looks at her with intensely scared eyes and says something that makes the viewer realise that the movie isn’t over, as we thought it was, but that we’re dealing here with a little girl so evil she doesn’t care about The Light. She’s still out there, and she just want to eat more souls.
Ringu - the woman crawling out of the TV freaked the everloving shit out of me.
The rape scene in Blue Velvet.
Not even gory, but still freaked me out when I saw it in one of my film classes: the “She’s my daughter! (slap) She’s my sister!” scene in Chinatown. The only thing that made it worse was the old man leading his innocent daughter/granddaughter away at the end, presumably to molest her as he did her mom/sister. 
I was at home watching the american version, right. It was night, dark, I was by myself, and generally spooked out by the whole movie, when this scene comes. Now, the scene itself was scary enough, but what really made me crap my pants was that I was sure that I heard someone knock on my balcony window (this being at the third floor). :eek:
It took me only a couple of seconds to realise that what I’d heard was in fact not someone knocking on my window, but some fireworks going off nearby. By then, of course, I was pretty much terrified, and I believe I was as scared of the dark that night as I was when I was a kid.
Eraserhead.
The rape scene “Once Were Warriors”
Someone had recommended the film to me, and due to odd circumstances, I had ended up seeing a musical based on the film first. It was a horrible musical - just awful, and through incompetent writing, casting, direction, and acting, they managed to tone that scene down to the point it had almost no emotional impact whatsoever.
The same scene in the movie was terrifying.
Movies haven’t bothered me in years 'til I saw Training Day.
The scene that killed me is where Jake is left with the Chicano gangsters.
shudder
The tractor trailer scene in the original The Hitcher.
Santa Sangre - the scene where the young boy gets “tattooed” and the elephant funeral scene. That is one fucked up movie.
Tell me about it. I can remember feeling a sympathetic pit open up in my stomach when I saw that scene. Very uncomfortable (though a great scene). Pretty much that whole movie blew me away - the only time I ever remember leaving a theatre with a racing heartbeat and nerves all on edge.
My pick for freakiest scene (probably because I saw it again on TV last night) is in Trainspotting when Renton becomes intimately acquainted with “The Worst Toilet in Scotland”. <yecch> <shudder>