I sure hope the dialogue isn't like that of Batman Begin, where every line in the movie is repeated later.
Examples:
"Nice coat"
"Finders keepers"
"Didn't you get the memo? "
"It's not who I am underneath, but what I do that defines me. "
"mind your surroundings"
"You haven't given up on me yet?" "Never!"
"Why do we fall, sir? So that we might better learn to pick ourselves up. "
"various charitable foundations, and trusts, and so forth. Look, it's all a bit technical"
Aside from dialogue I really liked Batman Begins, so I'm definitely looking forward to this. Though I do hope they focus on one and only one villain, especially if the Joker is involved.