Cameron lining up new sci-fi action movie

James Cameron is in negotiations to produce sci-fi movie 'Myth'.

The 'Avatar' filmmaker has entered talks with 20th Century Fox to work on the project alongside 'Transformers' producer Lorenzo di Bonaventure and actor Sam Worthington - who will work behind the camera rather than in front of it.

Nothing is known about 'Myth', but according to The Hollywood Reporter it is "big, sci-fi and it's got lots of action".

No names have been attached to star in the project.

It is a busy time for Canadian-born James, who is currently penning a "bible" for the two planned sequels to 'Avatar'.

Sam, who starred in the first film set on an alien planet invaded by humans, said: "At the moment, he's still writing what he calls 'The Bible' and detailing the world. Once he's detailed the world - more so than it's already detailed in his big brain, anyway - then, he said he can write the script, and we can go explore the world.

"Things like going underwater, going into the floating mountains."