I just got back.
In terms of the "catfight," it was okay enough -- but it happened a good hour into the movie, U... not early, like you stated.
And Sawyer off Lost got a bit part in the movie (some of you might recognize him, despite the shorn locks).
Also, due to all the promotion and it being the holidays and kids being off school and them even doing pre-release showings on Tuesday, I figured the theater would be pretty full, so I pre-bought tickets. The showing I went to was in one of the main rooms of the theater... and there were only about eight people in the entire place. I could sit pretty much anywhere I wanted. It was ridiculously empty.