…bonus points if they made you screech or gasp as well. Here are two that shocked the living shit out of me:
The Ring, when Samara has emerged from the TV and is making her way across the room. She’s walking super slowly, then all of a sudden BLIP she blinks forward four or six feet in an instant. I squealed like a kicked dog.
Se7en, when the “sloth” guy suddenly sits up in his bed, gasping and choking, and people start screaming, “He’s alive!!” :eek:
Carrie (anyone who’s seen Carrie will know the moment. If you haven’t seen Carrie no way am I going to be the one to spoil it for you.)
There should be spoiler tags in this thread.
getting the hell out of here before someone writes about a movie I haven’t seen, unlike Seven and The Ring, which I have seen
Ah, god! I second both of these. I’ll also add:
Sixth Sense, when the little girl grabs his ankles from under the bed. WE NEED TO WORK ON OUR COMMUNICATION SKILLS! So not okay.
Stir of Echoes has two scenes that made me jump. The first was when he leans back on his couch and the young, dead woman is sitting next to him. The second is when they pan to the finger nails clawing at the floor and one comes completely off. That jump was followed by several hours of low-grade nausea.
Tremors. I was a kid when this was in theaters and I remember being bored almost to sleep, gummy bears in hand when BAM, the first crazy thing came up through the ground and sent several of my gummy bears flying into the seats behind me.
Um…the thread title says “open spoilers.” 
My wife and I, both big Firefly fans, went to see Serenity. I had seen it already but she hadn’t.
When Wash was killed by the Reavers, my wife (already all wound up with tension from the descent/crash scene) jumped, grabbed my arm, put it in front of her face, and bit. It proved a memorable scare moment for both of us.
Carrie, of course.
Jaws - The scene just before “I think you’re gonna need a bigger boat.”
the Exorcist III = the night nurse scene. It is the stuff of legend (at least on the SDMBs), and needs no more explanation except to say that when I saw this in the theater, I became instantly paranoid about who was right behind me!!!
the Shining = When Scatman Crothers gets whacked.
Raiders of the Lost Ark = The melting nazi.
Oh, I have another. Note that it isn’t especially horrifying, just tense:
**
Pulp Fiction**, where, after the agonizingly long pause, Jules plunges the needle of epinephrine into Mia’s heart, and she goes gasping and twitching across the floor. After seeing it 30 times, it *still *makes me jump.
Not a great movie, but DAMN what a great scene. I think it’s the perfect “gotcha” scene.
I was in the front row of a cinema watching a mystery involving a female lawyer who defends a man charged with murder. (Jagged Edge - 1985)
At one point she’s in bed and the camera pans smoothly out of the room and down the stairs towards the front door.
Suddenly a gloved hand smashes through the glass door panel and unlocks the door! :eek:
Every woman in the cinema screamed (and some of the men). I thought the place was on fire and leapt up, preparing to move swiftly to the fire exit.
The I realised what had happened and turned back.
The audience were now all looking at me, not the film. :o
And hey… I just found it on YouTube. With Japanese subtitles no less. Still makes me want to sit with my back flush against the wall!
Vincent.
Poltergeist- the (in)famous clown-under-the-bed scene- just freaked me out shitless.
In the 1953 version of THE THING, there’s a scene where they have learned that two men were killed by the Thing, hung upside down and drained of blood. They’re going to the room where the bodies are, and when they open the door, the Thing is standing right in the doorway. I’ve seen the movie several times, I know what’s coming, and I still jump out of my skin. And there’s no camera trickery, no fancy fast-cut, it’s the overall set-up.
And, if you’ve ever watched Hitchcock’s REAR WINDOW with an audience, there’s always screams and people jumping in the scene where Raymond Burr looks straight at the camera (hence at Jimmy Stewart) never fails to
Star Trek: Generations, when Picard unexpectedly walks into the forcefield.
All quiet, lonely desert planet, then…
VRRRAP!
Yow.
I still haven’t quite gotten over Audrey Hepburn’s little surprise in Wait Until Dark.
Bet you jumped when Richard Dreyfus was checking out the hull of that fishing boat, too.
My mind was looking at Vincent and my fingers said “Jules.” :smack:
.
I was going to post that very scene! I knew it was coming, but when it happened, I screamed like a little girl. I was positive I had awakened the entire family, but they slept through it!
Alien, when Tom Skerritt is in the ventilation system
Two Towers, when Shelob drops down from the roof (ceiling?) of the cave.