Well, I didn't watched them today, I watched them yesterday ...but here goes.
Knocked Up - Decent enough comedy. I imagine it will easily get a 15 certificate/R in America for the amount of language in it...didn't expect that much. A funny comment from it was when Seth Rogen is arguing with Paul Rudd, and Rudd comes out with "You're like Babe Ruth's gay brother...Gabe Ruth." Ain't heard that one before, but then again, I ain't american...so excuse me for liking that.
1408 - It has to be said, I expected more from it. It's one of those films where it will get better ratings simply because of the involvement from John Cusack and Samuel L Jackson. Don't get me wrong, it was "OK", but I have the feeling that if it never had that sort of "star power" in it, people would probably like it less.