Didn't find anything amusing in it at all, and didn't like it.
If you want to see the real thing, I recommend Todd Solondz' films "Storytelling" and "Happiness".
Funny, unique - they don't make 'em like this anymore, and never did - and sexual/relationship/social commentary. But insightful and raw. (And no pretentious wine sniffing).
Make sure "Storytelling" is the DVD with the unrated version included. Howard Stern used to play an audio clip from this film.
Paul Giamatti of "Sideways" is one of the stars.