Teresa Palmer (The Sorcerer’s Apprentice) is the latest addition to the cast of director D.J. Caruso‘s adaptation of the upcoming young-adult sci-fi book by James Frey and Jobie Hughes, I AM NUMBER FOUR. Palmer will play Number Six and joins Alex Pettyfer (Beastly) who plays Number Four and Sharlto Copley (District 9)  as a man who hails from the alien world’s serving class but now is the title character’s adult guardian and mentor.

Michael Bay is producing the DreamWorks project, alongside Steven Spielberg. Al Gough and Miles Millar (Smallville) wrote the screenplay.

I Am Number Four is slated to hit theaters on February 18th, 2011.

[Source] THR