Unseen 64, the group who posted an amazing video not too long ago about The Avengers game from THQ, is back with another in-depth feature about another comic book themed game that was never to be: Batman: The Dark Knight. Batman: The Dark Knight was the never officially unveiled game from publisher EA and developer Pandemic Studios that was supposed to be based on the ground breaking film of the same name. The video shows concept art and even character models for Heath Ledger’s Joker and gets into some real interesting details about the tumultuous development cycle of the game. Check it out for yourself: