Check out 8 minutes of Justice League Dark footage

The Killing Joke Blu-Ray includes a special sneak peak at Justice League Dark, Warner Bros. new animated film that was confirmed at San Diego Comic Con.

Of course, this video has made its way onto Youtube compliments of Mr. Marbles, and it shows some great, behind the scenes footage. You can see Zatanna, Constantine, Swamp Thing, Etrigan the Demon, Black Orchid and Deadman are in the film. Don't worry, as Batman, Superman and Green Lantern are also included. There may be more characters, but these are the only ones shown in the video.

Mike Carlin, the Creative Director of the film, is interviewed and explains what makes it different than the standard Justice League film.

“JUSTICE LEAGUE DARK IS WHAT IT SOUNDS LIKE. IT’S THE DARK SIDE OF JUSTICE. A GROUP OF SUPERNATURAL HEROES WHO BAND TOGETHER LOOSELY TO TAKE ON OCCULT THREATS, SUPERNATURAL THREATS – THREATS THAT THE REAL JUSTICE LEAGUE MAY BE POWERLESS AGAINST.”

No release date was announced yet for Justice League Dark, but we'll update you as soon as we hear. What do you think of how the film looks so far? Let us know below