I'm a little disappointed at how many of them went for the easy fart/puke/pee jokes. Like Gary said - comedy is tricky, and the gross-out stuff is cheap & easy -- but not necessarily good.
Some of these really suck -- Kenny's cab driver and the chick who graduated from film school were incomprehensible.
Dude, Jason looks like Max Perlich.
I also agreed with Carrie & the others that the 'nerd' in the movie theater seemed more mentally challenged than nerdish. I was thinking the same thing while watching.