The story is based on the 2011 comic book series by Geoff Johns and Andy Kubert. Here is the official plot description from Warner Bros.
"When time travel allows a past wrong to be righted for The Flash and his family, the ripples of the event prove disastrous as a fractured, alternate reality now exists where a Justice League never formed, and even Superman is nowhere to be found. Teaming with a grittier, more violent Dark Knight and Cyborg, Flash races to restore the continuity of his original timeline while this new world is ravaged by a fierce war between Wonder Woman's Amazons and Aquaman's Atlanteans. With breath taking action and an all-star voice cast, it's a bold, emotional vision that will forever change the landscape of the DC Universe."Kevin Conroy will provide the voice of Bruce Wayne/Batman, Ron Perlman voices Deathstroke, Dana Delany plays Lois Lane, and Vanessa Marshall lends her voice to the Wonder Woman role. Other voice roles including Flash, Cyborg, Reverse Flash, Aquaman, and others will be revealed at a later date.
Justice League: The Flashpoint Paradox comes to theaters July 30th, 2013.
