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Described as being a film about determination, danger and the ocean’s greatest depths, James Cameron's "Deepsea Challenge 3D" tells the story of Cameron’s journey to fulfill his boyhood dream of becoming an explorer. The movie offers a unique insight into Cameron's world as he makes that dream reality – and makes history – by becoming the first person to travel solo to the deepest point on the planet.

Director Michael Apted revisits the same group of British-born adults after a 7 year wait. The subjects are interviewed as to the changes that have occurred in their lives during the last seven years.

Years spent recording footage of creatures from every corner of the globe is bound to produce a bit of drama. Here's a behind-the-scenes look.

James Cameron teams up with NASA scientists to explore the Mid-Ocean Ridge, a submerged chain of mountains that band the Earth and are home to some of the planet's most unique life forms.

Giving fans unprecedented access to the real life of the music sensation, Katy Perry: Part of Me exposes the hard work, dedication and phenomenal talent of a girl who remained true to herself and her vision in order to achieve her dreams. Featuring rare behind-the-scenes interviews, personal moments between Katy and her friends, and all-access footage of rehearsals, choreography, Katy’s signature style and more, Katy Perry: Part of Me reveals the singer’s unwavering belief that if you can be yourself, then you can be anything.

With commentary from Hollywood stars, outtakes from his movies and footage from his youth, this documentary looks at Stanley Kubrick's life and films. Director Jan Harlan, Kubrick's brother-in-law and sometime collaborator, interviews heavyweights like Jack Nicholson, Woody Allen and Sydney Pollack, who explain the influence of Kubrick classics like "Dr. Strangelove" and "2001: A Space Odyssey," and how he absorbed visual clues from disposable culture such as television commercials.

An epic story of adventure, starring some of the most magnificent and courageous creatures alive, awaits you in EARTH. Disneynature brings you a remarkable story of three animal families on a journey across our planet – polar bears, elephants and humpback whales.

After years in the limelight, Selena Gomez achieves unimaginable stardom. But just as she reaches a new peak, an unexpected turn pulls her into darkness. This uniquely raw and intimate documentary spans her six-year journey into a new light.

Three brothers - Marshall, Marty and Mark dream of becoming naturalists and portraying animal life of America. One summer their dream comes true, they travel through America, filming alligators, bears and moose.

One Life captures unprecedented and beautiful sequences of animal behaviour guaranteed to bring you closer to nature than ever before, as well as a second disc packed full of never before seen extras including an exclusive making of featurette narrated by Daniel Craig.