'Batman: The Killing Joke' Trailer: The Joker's R-Rated Origin Story Is Coming

The first trailer for Batman: The Killing Joke is here, and the R-rated animated feature looks just as grim as the graphic novel that presaged it. We're given plenty of action sequences from the square-jawed Batman and manically laughing Joker, who are both out to settle old scores and do plenty of battle in the process. Watch the trailer above.