“…When we were preparing ‘Justice League Unlimited,’ and actually very shortly after we shut down ‘Justice League,’ the idea was to do a movie that would bridge a lot of the continuity between the two shows. It was a big change just going from six to 60 members, and answering questions like, ‘Where did the teleporter come from? And where did the new satellite come from?’ I wrote it, and we realized that putting ‘Justice League Unlimited’ together was a much bigger production and challenge than we thought of ahead of time and we just didn’t have the manpower to do both the show and the movie so we put the movie on the shelf. But Bruce [Timm] really never gave up on it. He kept trying to do it over the years, and I guess the right opportunity came along and he called me up and said, ‘Hey, we can do this if we base it on the comic books and not the animated version. Would you be interested in re-writing it?’ And I was very interested.”

Dwayne McDuffie

Related: Video interview with voice actress Gina Torres.