The Bank Job (based on real events) is almost the opposite of The Dark Knight. It's a low-key caper movie with very little in the way of explosive devices, a cast that, while not unknown is certainly not well-known (with the possible exception of Jason Statham). But it gets the job done, and it's just as entertaining as the Batman movie (at least to me).
MI5 (or 6; like a cop in the movie, I can never keep them straight) wants some incriminating photos of Princess Margaret that are in a bank safe-deposit box. They can't get an order to get to the box, so they arrange to have a gang of small-time crooks rob the bank. One member of the group is to get the photos. Things, as you might expect, don't work out exactly as planned. I'll say more except that this one's worth your time.