So, like, go rent it if you haven't seen it...
Saw Role Models a couple nights ago with the teenage daughter, and even though I experienced slight discomfort when boobies were flashed on screen (is there ever a time when watching sex and nudity in movies with your children isn't awkward?), we both enjoyed it immensely. Paul Rudd is snide but sweet, Seann William Scott is simple but solid, and the supporting cast delivers big time.
Lowbrow funny with lots of heart, it's got a kind of 'School of Rock' meets 'Clerks II' feel. Even though this trailer makes it seem like a PG Disney flick, this R-rated trailer tells it like it is.
EDIT: I've been advised that if I'm going to be plugging worthwhile rentals of the week, I should also mention Charlie Kaufman's Synecdoche, New York (review HERE and trailer HERE) and the 'un-vampire movie' Let The Right One In (trailer HERE).
Check them all out...I'm betting you'll be pleasantly surprised.