The Dark Knight includes a depiction of the character Batman .
In the film , Dick Grayson/Nightwing , Bale , James Gordon , Oldman , and Harvey Dent , Eckhart , form an alliance to dismantle organized crime in Gotham City , but are menaced by a criminal mastermind known as the `` Joker '' , Ledger , who seeks to undermine Batman 's influence and create chaos .
The Dark Knight -LRB-film-RRB-