Re: Biggest Disappointment - Part 1
The watering down of the violence to attain a PG-13 rating (i.e: the fake Batman impersonator having Joker's note attached to him with a safety-pin, instead of a knife as was the original plan). Also, that they still insisted on shaky-cam action and Batman's gritty, raspy voice after criticism in the first movie.
Minor nitpicks, nothing major. Great film.