Warner Bros. is making a direct-to-DVD animated movie of Darwyn Cooke's The New Frontier, a DC comics mini-series covering the Silver Age of DC, and including pretty much every DC character of that period. The Hal Jordan Green Lantern is the protagonist, but Superman, Wonder Woman, Batman, Martian Manhunter, etc., all make appearances.
I'm looking forward to that movie immensely. The live-action JLA? Not so much.