Moviefone has debuted the trailer for Aristomenis Tsirbas' Battle for Terra (previously entitled Terra), a sci-fi CG animated film that has been completed and screened in several festival since 2007 but its getting a wide theatrical release this year courtesy of Lions Gate. For an independently produce film, the visual quality looks impressive. Its quite refreshing to see a serious approach rather than the usual comedic tone we often see in conventional animated films. The voice cast reads like a who's who list of actors/actress which include Evan Rachel Wood, Brian Cox, Luke Wilson, David Cross, Justin Long, Amanda Peet, Dennis Quaid, Chris Evans, James Garner, Rosanna Arquette, Chad Allen and more.

Mala (Evan Rachel Wood) is a precocious girl living on the beautiful planet Terra, a place where peace and tolerance are celebrated. However, the last inhabitants of Earth have exhausted the resources of their planet and are now searching for a new home. This Earthforce has discovered that the use of a Terraformer will make Terra habitable for humans but poisonous for Terrians. When the Earthlings embark on a hostile invasion of Terra, Mala's father, Roven (Dennis Quaid), is kidnapped. Hoping to save her father, Mala captures and hides a crashed human pilot named Jim (Luke Wilson). While Mala nurses Jim back to health, the two forge a friendship and a plan that could save both the human race and the planet of Terra.

It opens on May 1st in both 3D and 2D formats. You'll find the trailer after the break.