Sharlto Copley Joins I Am Number Four?

HeatVision reports that Sharlto Copley (District 9) might join Alex Pettyfer in I Am Number Four. The science fiction film will be directed by D.J. Caruso (Eagle Eye, Salton Sea) and is produced by Michael Bay/Steven Spielberg.

"The story focuses on the fate of nine gifted children and their guardians, the sole survivors of a bitter war on their home planet called Lorien, who have settled on Earth under the protection of a charm that means their enemies can only kill them in numeric order. Three of the nine are dead; the novel’s narrator is number Four. The nine children and their guardians evacuate to earth and the protagonist, a Lorien boy named John Smith, hides in Paradise, Ohio, as a human and tries to evade his predators."