Choose and analyse a film structure: The Dark Knight: Act 1: A gang of masked criminals rob a mafia-owned bank in Gotham City, betraying and killing each other until the sole survivor, the Joker, reveals himself as the mastermind and escapes with the money. The vigilante Batman, district attorney Harvey Dent, and police lieutenant Jim Gordon ally to eliminate Gotham's organized crime. Batman's true identity, the billionaire Bruce Wayne, publicly supports Dent as Gotham's legitimate protector, as Wayne believes Dent's success will allow Batman to retire, allowing him to romantically pursue his childhood friend Rachel Dawes, despite her relationship with Dent. Gotham's mafia bosses gather to discuss protecting their organizations from the Joker, the police, and Batman. The Joker interrupts the meeting and offers to kill Batman for half of the fortune their accountant, Lau, concealed before fleeing to Hong Kong to avoid extradition. Explanatio...