As a boy, filmmaker James Cameron dreamed of a journey to the deepest part of the ocean. This film is the dramatic fulfillment of that dream. It chronicles Cameron s solo dive to the depths of the Mariana Trench nearly seven miles beneath the ocean s surface piloting a submersible he designed himself. The risks were astounding. The footage is breathtaking. JAMES CAMERON S DEEPSEA CHALLENGE 3D is a celebration of science, courage, and extraordinary human aspiration.