As I spent last night watching The Dark Knight for the second time, it was apparent why it was one of the better films of 2008 — for all its Shakespearean overtones and Christopher Nolan’s astute direction, it’s really just a movie about a guy with a lot of fancy toys on a vigilante tear against drug dealers, mob bosses, and serial killers. So then, just maybe, it’s some sort of action-flick hangover which has…