James Cameron's Avatar Will Be A Quadrilogy, Not Trilogy As Planned

James Cameron's planned Avatar trilogy will be a quadrilogy it was announced on Thursday 1st August.

James Cameron's 2009 Avatar will become a one of four as plans for three more sequels have been announced. Josh Friedman (War of the Worlds), Shane Salerno (Savages), Rick Jaffa and Amanda Silver (who both wrote Rise of the Planets of the Apes) will collaborate with Cameron on the sequels.

Avatar, which was released in 2009, starred Sam Worthington as a paralysed marine who is given control over the body of a blue alien 'Na'vi' clone. He accidently infiltrates the Na'vi, realises the humans are the monsters and leads an uprising in order to protect the natural resources of the planet Pandora.

Starring alongside Worthington was Sigourney Weaver and Stephen Lang whilst Zoe Salanda provided her voice and likeness for Worthington's Na'vi love interest Neytiri. Any casting decisions for the Avatar sequels are yet to be revealed.