I saw it on Thurs nite, too. Can I just say that I loved it?? Only bad part was that my theater wasn't a participating one, so it didn't have the special Avengers 3D glasses.
Lurch --
I'm prolly in the huge minority, but I didn't like Norton at all. He plays too many smarmy, con man, jerk/bad guy types to have made it believable for me. Plus, Banner was supposed to be just a "regular" guy, not the guy Steve Rogers used to be (Norton just seemed waaay too skinny). Personally, I thought Tim Roth would have made a better Banner with Norton being the villain Blonsky. So, because of all this, I actually liked Ruffalo -- he also reminded me of Bixby.