Christopher Nolan is a simple, discreet, hard-working man. His work on Memento was made with great talent and The Prestige is a pleasant movie. Unfortunately this is not the case with his batman movies. "Begins" has many defects (mainly Katie Holmes) but it is not bad. This is just an average movie with no chance to date in film history. The Dark Knight seems to have been made by a pretentious man (a pretentious crew, at most). The major lacks of the movie is a dense scenario with no rhythm and no emotional implication and a flabby direction. After the two third of the movie, I was actually blunted and the only thing that I wanted to see was "The End" on the screen. Because I didn't care of the fate of the batman or the commissioner Gordon or Harvey Dent and because the story slacks from the beginning to the end. I don't think that Nolan was the good choice for such a movie, and excepting the early 90's McTiernan, I can't see what director would now be good enough to make this ambitious movie. Hiring a talented script-writer wouldn't have been bad for the sake of the movie, and a director who knows the making of good action scenes (but not like the bad Michael Bay). Nevertheless, The Dark Knight has some qualities : the actors are good, particularly Heath Ledger, and it's better than nothing.