Geoff Johns and Jim Lee’s Justice League: Origin arc adaptation marks the first foray of New 52 characters into animation. Voice talent includes Alan Tudyk, Jason O’Mara, Justin Kirk, Michelle Monaghan, and Sean Astin.
I stuck with the first few issues of the new Justice League then sort of tailed off, so it’ll be interesting to how the story pans out. In the New 52 Universe, superheroes have been around 5 years or so (6 now, I guess?) and this takes place just prior to that.