Recommend me a horror movie

Oldie but Goodie:
Demons

Something newer and messed up:
Dead Girl

Dead Snow, it's a Finnish Horror movie about Nazi Zombies.

Scary? Anything made by Syfy. They are so god aweful it's scary anyone funded their production

Trick or Treat

The house on haunted hill!!!

Clicky

look really really hard, trust me you'll see it.

Dead Silence is a pretty good movie.

how about Jacob's Ladder?
it will blow your mind...

DeaD Birds Shutter 2004

Shrek

someone already mentioned but jacobs ladder is the thing

http://img.gawkerassets.com/img/17in6jducefqnjpg/xlarge.jpg

Audition

The Exorcism of Emily Rose

Black sheep! because that so fits the genre

Hobo with a Shotgun, its streaming on netflix.

Evil dead, Evil dead 2, Army of Darkness, Bubba Ho tep, Slither, Peter Benchleys Creature, Dead Alive, Let me in, Pitch Black.

I liked The Cave, but of course bad reviews.

Tomie Unlimited

Zombie Ass

Mutant Girls Squad

Helldriver

Devils Backbone

100 Feet

Films to Keep You Awake: The Baby's Room

The Eye

The Messengers

Død snø

NORWEGIAN STUDENTS BATTLE ZOMBIE NAZIS!

Silent Hill

THEY

It

C.H.U.D. or The Thing not the remake, Cemetery man if you like strange ones, Videodrome, Poultrygeist, also recommend the original wickerman, pan's labyrinth should also count

I think Doras scary.

Any Jason movies.

Never Say Never