The first movie was amazing, and the second was even better. I dont see how they could have improved anything (other than replacing liv tyler with someone who can act) Everything in the two movies was perfectly done. Followed the books pretty well, other than leaving out a few small details.
I could honestly say, If you're not a fan of the average elves and wizard story, you'll still love this movie. I dont think theres anything in it to complain about. The speacial effects are amazing, the story is solid, the characters are awesome, and all the acting and character placement was well done.
Watching the second movie. you almost feel as if you're in it. It really grabs you and takes you for a ride.
Amazing movies so far, can't wait for the next.