Harrison Ford is in talks to star in the thriller "Ender's Game".  Also starring in the film is Asa Butterfield, from "Hugo".

Butterfield will play Andrew 'Ender' Wiggin, a young boy who gets bullied, but turns out to be a master military strategist. The film will be an adaptation of  Orson Scott Card's sci-fi novel.

Originally, Viggo Mortenson was in talks to play the role of Colonel Hyrum Graff, the commander of training at an elite boys' military school. But, now that Mortenson is our, Ford has stepped in.

The film is set for a 2013 release.