if you would like suggest me some horror movies :)

If your a male, Twilight.

Justin Bieber: Never Say Never

The Thing. The one from 1979, not last year's.
28 Days Later.

serbian film

the most fucked up shit ever

The Exorcist
The Shining
Rosemary's Baby
100 tears uncut

I haven't actually seen it,but by the trailers and a few clips I've seen Chernobyl Diaries and My Bloody Valentine seem really cool

Insidious, that movie is fucked up.

Any Japanese horror film is scary for me.

Try 'The Grudge' if you haven't seen it already.

Society

"Bill is worried that he is 'different' to his sister and parents. They mix with other 'upper class' people while Bill is more down to earth. Even his girlfriend seems a bit odd. All is revealed when Bill returns home to find a party in full swing"

(here's a little preview)

Evil Deads, Army of Darkness

hmmm make you toilet whole in shit and leave kitchen full of food for one whole week and then try to clean it yo will see true horror then

Let the right one in

I also liked The Skeleton Key.

(Frankly neither is truly horror, but atmospheric enough.)

Try Vampire's Kiss - not a scary movie but Nicolas Cage is insane in it. Definately worth watching :)