Less focused thematically than its predecessor, the Titanic film "Ghosts of the Abyss," "Aliens of the Deep" is nonetheless a visually enthralling undersea travelogue that should do fine business in large-format theaters and later on DVD. Co-directed by Cameron and Steven Quale, the 47-minute feature depicts Cameron and a crew of scientists as they explore the furthest reaches of the deep, where they encounter a wide variety of photogenic sea creatures. Nonetheless, the stunning large-screen 3-D photography and the absolutely amazing underwater creatures it captures makes "Aliens of the Deep" essential viewing for the geeks among us.

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