There was a movie trailer that shows a scene where two guys in an office are having a disagreement and one guy (either the devil or possessed) says to the other "go f**k yourself " and the other man's body twists and contorted to do just that!
For the life of me I can't remember the name of that movie and I never saw it. Can you help me. It's a horror.

Possibly Wishmaster 2 Lawyer scene - YouTube (http://www.youtube.com/watch?v=Mtu3D471gK8)