Okay, first off — Warning! This Batman movie is not for kids! Batman: The Killing Joke is the first- R-Rated DC original animated movie ever. It’s based on the comic created by Alan Moore & is known for being particularly disturbing and dark. This is what sets up The Joker as the baddest villain in Gotham. You know how Batgirl ended up in a wheelchair and then became Oracle — well this is how she ended up paralyzed.
Batman: Killing Joke had it’s debut at Comic-Con and Maddy was there to interview the voice of Batman himself (Kevin Conroy), Ray Wise (yes! THAT Ray Wise!) who voices Commissioner Gordon, and writer Brian Azzarello (who not only adapted the one-shot to the script, but added additional material to the story to give Barbara Gordon a story arc).