Warner Brothers Animation is shaking up the DC Animated Universe once again with two new movies. Batman: Year One hits retailers on October 18, 2011 and is based on the legendary comic book storyline by Frank Miller and David Mazzuchelli. It shows us a glimpse of Bruce Wayne’s start as Batman. Preview the first clip here. Another new movie, Justice League: Doom, is based off the JLA: Tower of Babel series. Many veteran DC voice actors are reprising their roles: Nathan Fallon as Green Lantern, Carl Lumbly as Martian Manhunter, Susan Eisenberg as Wonder Woman, Tim Daly as Superman, and Kevin Conroy as Batman. Bumper Robinson joins the cast as Cyborg and Michael Rosenbaum is the Flash. Bruce Timm returns as executive producer; the DVD will be released in early 2012.