Watch Free Online HD Moviesjoy. In late March 2012, as the world held its breath, Oscar winning director and National Geographic Explorer James Cameron, and his Australian-designed vessel, plunged to the ocean’s deepest point, making him the only person in history to complete the dive solo. Join him, moment by nail-biting moment, for an exclusive, intimate glimpse inside the mind of a master traveller and his journey to the bottom of the Mariana Trench.