I only remember his air being different in the first movie, and it didn't bother anyway. What bothers me is I'm pretty sure I've read the book and can't remember a damn thing about it. I have found the Brown's books fit a pattern. Establish a tense situation, make it a puzzle, and send the symbolist to solve it.
The more I think about what I do remember about the book, the more I think it was written to be a movie. I like the pairing of Howard/Hanks. I hope it's good.
Langdon is becoming the 007 of symbologists. I pretty girl in every movie, but they don't stick around for the next one. At least 007 got more action than Langdon.