I Am Number Four is an upcoming 2011 American teen science fiction film, directed by D. J. Caruso, starring Alex Pettyfer, Timothy Olyphant, Teresa Palmer, Dianna Agron, Kevin Durand, and Callan McAuliffe. The film is based on the novel I Am Number Four, written by Jobie Hughes and James Frey, with an adapted screenplay by Al Gough, Miles Millar, and Marti Noxon. Nine infant aliens, who closely resemble humans, flee their home planet, Lorien, to hide on Earth. An invading species, the Mogadorians, have destroyed their planet, and followed them to Earth to hunt them down. Each of the nine aliens is given a guardian and will develop superhuman powers as they become adults. They are each assigned a number. These last children of Lorien can be killed only in the sequence of their numbers. Numbers One, Two, and Three have been killed so far.