Batman: The Killing Joke
There are many reasons why DC fans find “The Killing Joke” controversial but Warner Bros. really added fuel to the fire by deciding to do an animated adaptation of one of the darkest Batman stories ever told. Fans were angered by Bruce Timm’s treatment of Batgirl / Barbara Gordon as a sexual object used not only by the Joker but Batman as well. The film also features a rendition of “The Looney Song” mentioning “when your kid turns blue” which left most audiences sick to their stomach.