In this sequel to the JLA animated television series, the weaknesses of the founding members are used by an enemy, who has created the LEAGUE OF DOOM.
He's recruited Supervillains who have gripes with specific JLA members, such as Cheetah with Wonderwoman, Bane with Batman and Metallo with Superman.
While the animation is on par with the recent Warner Brothers animated DC comics films (eh), the story is great and consistent (and grittier) than the television series.
Written by Dwayne McDuffie (creator of Milestone Comics), who I was surprised to see this movie was dedicated to--he died in 2011 of heart failure).