New Number One

Timothy Olyphant will be replacing Sharlto Copley on the thriller I Am Number Four says Variety.

Based upon James Frey and Jobie Hughes's upcoming novel the story follows nine aliens who flee to Earth disguised as teenagers.

The story sees the title character, (Alex Pettyfer), learning the enemy alien race that caused them to abandon their home planet are still hunting them.

Copley, who had to bow out due to scheduling conflicts, was to play Henri, a guardian and mentor to the lead character.

Kevin Durand Teresa Palmer Dianna Agron and Callan McAuliffe co-star

D.J. Caruso calls the shots from Alfred Gough and Miles Millar's script

Michael Bay and Steven Spielberg will produce the pic..