What's the scariest movie you've seen?

Personally, it was Twin Peaks: Fire Walk With Me, but it's because it's just an incredibly weird movie where the main evil character is a direct play on my biggest childhood fear. Between the surrealism and my sort of inner child that movie freaks me out. I will say though that it may not work very well on everybody, though my answer is not the only time I've seen this movie answered to a question like this, and it is more towards the paranormal.

Great flick. David Lynch is a trip.

Here's a good list of some fun scary movies:

Les Diaboliques (US, The Devils)

The Severed Head Network

Ils (US, They)

The Ring

Ringu

The Grudge

Ju-On

The Descent

Demons

Demons II

Dead Alive

Suspiria

Inferno

Mother Of Tears

28 Days Later

Meatball Machine

Stephen King's The Mist

The Strangers

Re-Cycle

Audition

Pulse

Director’s Cut

Wind Chill

Dead In The Water

What Lies Beneath

When A Stranger Calls (the original)

Hatchet

Mirrors

L’intérieur

Frontière(s)

Sleepaway Camp

Sleepaway Camp II – Unhappy Campers

Sleepaway Camp III – Teenage Wasteland

The Blair Witch Project

Yogen (US, Premonition)

The Ruins

Broken

Donnie Darko

Conjurer

Signs

The Host

The Exorcist

Session 9

Exorcism Of Emily Rose

Final Destination

Final Destination II

Final Destination III

Something Wicked This Way Comes

13 Hours In A Warehouse

The Evil Woods

Voice

Suicide Circle

The Hitcher

Alien Raiders

Gremlins

El Orfanato

Rec

Quarantine

Let The Right One In

Play Misty For Me

Also, murder, cats and birthday presents converge in this horrific short, Happy Birthday 2 You. Watch it here:

http://www.blinkx.com/video/happy-birthday-2-you/M...

The scariest (or perhaps more aptly, the CREEPIEST) movie I've ever seen was One Hour Photo with Robin Williams.

Not that the movie in and of itself was particularly terrifying, but rather that it was highly disturbing, and you really don't have to suspend a lot of disbelief to watch the movie (It could totally happen, and it could EASILY happen). It's one of those movies that sticks with you for a while after you've seen it.

A recent movie called Seed. . It is a B movie, but the killing scenes look so real you would swear that they aren't acting. It is very scary and gave me nightmares. Beware before watching though, it is also very disturbing. There are several scenes of torture and animal creulty. Dont watch this if you have a weak stomach.

The Shining with Jack Nicholson. Super-creepy

The scariest one I have saw lately has been The Strangers. Although movies usually don't scare me, this one kind of bothered me because it says its based on true events.

The Saw movies are pretty good, too. If you want something really gory.

Anything Japanese. I think the Japanese version of the Grudge is pretty scary.

The Exorcist is pretty scary and The Shining too(although, that's more weird than scary).

The Grudge scared the crap out of me. My ex fiance' would make those sounds just to freak me out. Most movies do not scare me, I don't know why The Grudge did.

Freaky - The Descent.

Check out the original black and white version of the Haunting. It's seriously spooky

I can't handle any of the Hellraiser movies...too scary for me.