Claim: The Dark Knight is set in Metropolis.
Evidence: In the film , Bruce Wayne/Batman -LRB- Bale -RRB- , James Gordon -LRB- Oldman -RRB- and Harvey Dent -LRB- Eckhart -RRB- form an alliance to dismantle organized crime in Gotham City , but are menaced by a criminal mastermind known as the Joker -LRB- Ledger -RRB- who seeks to undermine Batman 's influence and create chaos.