Ah what could have been, courtesy of Batman On film we have a blurry look of the 'Justice League' from George Miller's unmade 2008 adaptation 'Justice League Mortal.'
The cast featured Armie Hammer as Batman, D.J. Cotrona as Superman, Adam Brody as The Flash, Santiago Cabrera as Aquaman, Megan Gale as Wonder Woman, Hugh Keays-Byrne as Martian Manhunter, and Common (Suicide Squad) as Green Lantern.
Miller expressed his thought to the Hollywood reporter on the unmade film:
"That was, oh, seven years ago, I think," said Miller. "And there was a really great script. And Warners said, 'Let's do it. Let's do a Justice League [movie].' I really was attracted to it. But there was a writers strike looming. We had to cast it very quickly, which we did with Warner's casting people. And we cast it really quickly and we mounted it very quickly. And it depended on a start date and it depended on some basic rebate legislation that had just got through a new Australian government. But it was just too big a decision for them to make in the time. And that fell through and the whole film fell through. We almost got there. And it wasn't to be. But that happens a lot, where films line up and the stars look like they're aligning and they didn't."