The Dark Knight

The film begins with the Joker robbing a mob-owned bank with his accomplices, whom he tricks into killing each other before killing the last one himself. That night, a trio of Batman impersonators interrupts a meeting between mobsters and the Scarecrow. The real Batman appears and apprehends all of the criminals and impostors, but suffers injuries from dog bites, leading him to re-design his batsuit. Batman and Lieutenant James Gordon contemplate including new district attorney Harvey Dent in their plan to eradicate the mob, as he could be the public hero Batman cannot be. Bruce Wayne discovers the new D.A. is dating Rachel Dawes and chooses to host a fundraiser for Dent.
Batman locates the Joker and prevents him from destroying the ferries after the passengers on both decide not to destroy each other. The Joker acknowledges that Batman is truly incorruptible, but that Dent was not, and his madness has been unleashed upon the city.
Cast

Christian Bale ... Bruce Wayne / Batman
Heath Ledger ... The Joker
Aaron Eckhart ... Harvey Dent / Two-Face
Michael Caine ... Alfred
Maggie Gyllenhaal ... Rachel Dawes
Gary Oldman ... Det. Lt. James Gordon
Morgan Freeman ... Lucius Fox
Monique Curnen ... Det. Anna Ramirez (as Monique Gabriela Curnen)

Ron Dean ... Detective Wuertz
Cillian Murphy ... Scarecrow
Chin Han ... Lau
Nestor Carbonell ... Mayor Anthony Garcia
Eric Roberts ... Salvatore Maroni
Ritchie Coster ... The Chechen
Anthony Michael Hall ... Mike Engel