Here's another interesting article about Dark Knight, the new Batman film, this one from Thomas Hibbs, on the First Things website. A little excerpt to make you want to go read it:
The title of the Nolan's latest Batman film calls to mind medieval chivalry in a postmodern key. The dark knight embraces extraordinary tasks and fights against enormous odds; his quest is to restore what has been corrupted and to recover what has been lost. In so doing, he takes upon himself a suffering and loneliness that isolate him from his fellow citizens and inevitably court their misunderstanding and scorn. He is a dark knight, in part, because the world he inhabits is nearly void of hope and virtue, and, in part, because some of the darkness resides within him, in his internal conflicts between the good he aspires to restore and the means he deploys to fend off evil. Of the many filmmakers designing dark tales of quests for redemption, Christopher Nolan is currently making a serious claim to being the master craftsman.
You can read the rest of the excellent piece here.