"Avatar" Sequel Planned for Mariana Trench off Australia

(CBS) "Avatar" director James Cameron is planning to go where few others have gone before to film the sequel to his 2009 3-D blockbuster.

The Oscar winning film director ("Titanic") has reportedly commissioned a special submarine that can go down seven miles below the ocean's surface as part of his plans for a sequel to "Avatar." The movie will be set in the oceans of the film's fictional alien planet of Pandora.

Pictures: James Cameron Pictures: "Avatar"

According to the Mail Online, the sub will be made of "high-tech, man-made composite materials and powered by electric motors, which will be capable of surviving the tremendous pressures at a depth of seven miles from which he will shoot 3D footage that may be incorporated in the sequel.

Cameron's filming is already in the works in Australia, where he is planning to travel 36,000 feet to the bottom of the Mariana Trench in the western Pacific Ocean, the deepest part of the ocean. Only one other team has gone there before - in 1960 when a scientist took five hours to get the ocean's floor.

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