Personally, I'd rather see a Justice Society movie than a Justice League movie.
The original Green Lantern, the original Flash, Dr. Fate, Dr. Mid-night, Wildcat, Starman, Hourman, the Atom -- throw in the Huntress and Black Canary and you've got a well-balanced team, but no one's overpowered. Especially the last incarnation where half of them were older and the other half were next-gen versions of the heroes. Good strong characters who're more than a touch flawed.
That would be worth watching.
I like that lineup better than
, Batman, Green Lantern, Wonder Woman, Aquaman, Martian Manhunter and Flash. Face it, those seven could wipe out the world and not break a sweat. Where's the challenge? Who's realistically going to threaten them?