In the comics he had a short brush with his alcoholism which he apparently got over before his big full scale blow up. There could be much more to come.Yes, he was supposed to be an alcoholic, but the film depicts this pretty much just as a big night on the piss.
I was expecting some bad ass epic fight scene that would put the Rhodey/Tony fight to shame. Very much disappointed in that one.Last fight in the movie should've been longer
As a movie it wasn't nearly as impressive as the first one, but the fights were much better putting it just lower over all.
EDIT: Oh yeah, the main reason I wanted to post.
I was not down with Samuel Jackson being cast as Nick Fury in the least. They could have done much better.