If it's crap ... We'll tell you
These movies have to work in front of a small group that will be talking to eachother. They have to be funny and at least a little sick and not so complex that anyone has to pay very close attention. Maximum of two movies since no one's really going to watch more than that at a single sitting.
Jingle All The Way
The Year Without A Santa Claus
"Killer Clowns From Outer Space" and "American Psycho"
God damn American Psycho is funny as hell to me.