'Avatar' sequel 'planned for 2014 release'

James Cameron has reportedly admitted that the sequel to Avatar will not be released until 2014.

According to the New York Post, it could be up to four years before audiences see the next instalment in the sci-fi trilogy.

The Titanic director recently revealed that he plans to film the second and third films together.

Cameron said: "Right now, the thinking is that [films] two and three are going to be done together. They'll be released separately, probably a year apart or maybe even two, but they'll be done in a bunch."

He added: "I'm mapping out the storyline right now, so there's a proper arc that plays out over two films, but [it] buttons nicely at the end of two, so you don't get this horrible second act Matrix feeling – you know, 'I've just sat through a three-hour movie and f**k all happened at the end!'"

Cameron began writing Avatar in 1994.