What is the weirdest movie you've ever watched?

Salo, totally.

Six String Samurai

Euro Trip

Cube (1997)

Naked Lunch
Brazil
Videodrome
Jacob's Ladder
Altered States
Zardoz

My Son, My Son, What Have Ye Done I don't even know where to start with this film -___-

Funky forest

The Suicide Shop.

Just watched it yesterday and thought it was very weird, yet awesome. Not your typical animated movie. Definitely not for kids :D

Nothing.

hobo with a shotgun. i don't go out of my way to watch weird shit. HWaS actually seemed awesome but was just crazy and dumb

Perfect blue.

Shutter Island

The Onion Movie :)

Symbol [ japanese]

Holy Mountain and Tetsuo, the Iron Man

Rubber

City of Lost Children and Delicatessan.

Salo I wouldn't recommend going anywhere near it though. Not sure I finished it.
I don't mind something being weird or shocking for a reason, but there didn't seem to be much point to this movie to me.

lol@ people saying Inception, Hellraiser 2, Scary Movie or Cube

not sure if too weird but, "Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb" was pretty awesome.

a serbian film

Cabin in the woods

A Serbian Film and The Human Centipede (1 & 2)

The Room
EDIT: Oh, this isn't a worse film ever thread! ...meh, gonna keep my answer anyways :p