The Dark Knight (movie)
At the end of the movie, Batman finds that Dent has kidnapped Gordon's family. When Batman arrives, Dent flips his coin to decide their fates. Before he can see the result of his next coin flip, Batman tackles Dent off the edge of the building, letting the vigilante plummet to his death. With Dent dead, Gordon says that if word gets out that Dent killed all these people, all the work he did will have been lost. Batman offers to take the blame for all the murders. Gordon, who is originally against it, agrees. He destroys the Bat-Signal and orders the police to hunt Batman down. Batman takes off into the night while Gordon's son does not understand the reasoning for why Batman must be hunted. But Gordon explains "because he can take it. Because he's not a hero. He's a silent guardian; a watchful protector; a Dark Knight."