George Miller's cancelled Justice League film to get a documentary

I'd like to see this. I hope Miller gets a chance to do a DC film soon. I'd love him to direct The Flash. The way the action in Mad Max felt like a damn roller coaster ride should be what it feel like for The Flash.

I remember when this movie was first announced too. It was weird because they cast Armie Hammer to play Batman, while Christian Bale was still playing the role.