batfan08
Super Freak
Just imagine - we would be shown Batman obsessively compiling each characters weaknesses (and strengths), this would actually introduce us to each of the JLA members pretty thoroughly (negating the need for individual films leading up to a JLA flick
"Subject: Hal Jordan
Alias: Green Lantern
Briefing: Jordan was born...blah, blah...graduated top of his class in the academy...blah, blah...found an alien ring(potential weapon of mass destruction), etc. etc."
Just start the film with some alien threat landing in Gotham Harbor, Batman defeats the threat, but barely makes it out alive. He decides that precautions need to be taken. Start out with a montage showcasing potential candidates for his "project." Also, generally speaking, with recruitment drives, there are those who make the cut, and those who don't. This "recruitment" aspect could not only allow DC to showcase members of the team, but also introduce characters for potential sequels.