"Ender's Game" is hitting theaters in less than a month, but Lionsgate is eager to show off the film's special effects -- including the Battle Room -- and notable cast, which includes Harrison Ford, Hailee Steinfeld, and, as Ender Wiggin, Asa Butterfield. Based on Orson Scott Card's bestseller, the Gavin Hood-directed film features a group of kids drafted into a war against a seemingly vicious alien race.

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