Titanic director James Cameron's continuing passion for deep sea exploration is showcased in this spellbinding documentary about the filmmaker's daring solo dive seven miles beneath the surface of the Mariana Trench in the western Pacific Ocean. Making the risky trip in a tiny submersible vehicle built to his own specifications, Cameron delivers a breathtaking cinematic record of the extraordinary scientific challenge. Not in 3D. 91 min. Widescreen (Enhanced); Soundtrack: English.