Hollywood director James Cameron has revealed that he is already considering a sequel to his latest smash-hit movie Avatar.

The film, about blue aliens on a faraway planet, cost a reported $300m, making it the most expensive film ever made.

However, it has already raked in $600m worldwide just two weeks after its release.

Cameron said he now he wants to expand on his tale about the inhabitants of Pandora, but insisted that the second movie would have a different locale.

He said: “The planet in Pandora’s sky is called Polyphemus and it’s the primary for a system of moons… Jupiter has 50 some moons and they’re discovering smaller ones all of the time.

“We have some story ideas for how to branch out into other moons of Polyphemus and the Alpha Centauri A solar system, but we’ve got to make some money with this movie first before we think about the sequel.”