Warner Home Video released a first clip featuring voice actress Summer Glau talking about playing Kara, to promote the direct-to-video animated feature Superman/Batman: Apocalypse, released on September 28, 2010.Based on the DC Comics series/graphic novel Superman/Batman: Supergirl by Jeph Loeb, Michael Turner & Peter Steigerwald, Superman/Batman: Apocalypse is produced by animation legend Bruce Timm and directed by Lauren Montgomery (Justice League: Crisis on Two Earths) from a script by Academy Award-nominated screenwriter Tab Murphy (Gorillas in the Mist).In Superman/Batman: Apocalypse, a spaceship splashes down in Gotham City Harbor — leading Batman and Superman to encounter a mysterious Kryptonian with powers as great as those of the Man of Steel. The Kryptonian is soon revealed to be Kara, cousin of Superman, who takes her under his wing to educate her about the ways of Earth. However, the villainous Darkseid has other plans. Seeing an opportunity to finally defeat Superman, Darkseid abducts and gains control of Kara, utilizing the powerful Kryptonian to do his bidding. Its up to Batman and Superman to save Kara, but theyll have to take the fight to Darkseid within his hostile world where unknown, deadly threats lurk around every corner, including a brainwashed Kryptonian able to match Superman blow-for-blow.Fan favorites Tim Daly (Private Practice) and Kevin Conroy (China Beach) return to their seminal roles as Superman and Batman, respectively. The celebrity-laden guest cast is headed by Andre Braugher (Men of a Certain Age) as the daunting Darkseid. Sci-Fi heroine Summer Glau (Serenity/Firefly, Terminator: The Sarah Connor Chronicles) provides the voice of Supergirl, and seven-time Emmy Award winner Ed Asner (Up) reprises his Superman: The Animated Series/Justice League role as Granny Goodness.