Didn't realise Zack and Miri... was a Kevin Smith film, I've loved a lot of his work. Chasing Amy is an excellent film, as you say, and very perceptive about relationships and peoples' insecurities. However, he blew it big time as far as I was concerned with Jersey Girl - a huge pile of schmaltz (I forgave him Jay and Silent Bob Strike Back). Doesn't sound as if this film is a return to form, and I really can't stand Seth Rogen and his whole 'I'm a fat slob but stunning women still sleep with me' gimmick, but I will try and reserve judgement and definitely give this a watch.