The Dark Knight and Game Theory

If you have not already seen The Dark Knight, then you should read this post at a later time as to avoid spoilers after the jump.  Otherwise, follow the jump for a game theoretic discussion derived from the movie that has already broken two box office records for both best midnight opening and top first day revenue.  I personally enjoyed the movie immensely, but that discussion does not follow. So, officially, consider this a spoiler alert for what follows.