LOS ANGELES (AP) — James Cameron will be one of the stars of his next big-screen adventure, a chronicle of the expedition on which he has made record-setting ocean dives.

Cameron says he plans a TV special for National Geographic and a 3-D theatrical release on the Deepsea Challenger missions, which included his 7-mile descent to the ocean's deepest point in the Mariana Trench in the western Pacific. It was the deepest solo dive ever.

He said in a phone interview Tuesday that the film could be ready late this year or early next year, depending on how much additional shooting he and his colleagues need to do.

Cameron completed his dive Monday, then rushed to London for the premiere of a 3-D version of his 1997 blockbuster "Titanic," which sails into theaters next week.