First of all, I must make this clear. I really liked the movie "The Dark Knight", specially Heath Ledger's potryal of the Joker. While surfing found an interting link connecting one of Joker's actions with the Game Theory. In one of the sequences, the Joker plants bombs on two ferries stranded in the middle of the river with their detonators on the other boat. There is no way to go out from the ferry and the people have half an hour time to take their decision, otherwise he would blow up both the ferries. A case similar to the Prisoner's Dilemma. The attached link connects this sequence to the Game Theory and Nash Equilibrium.