Titanic: A Tale of Two Journeys'

With a team of the world's foremost historic and marine experts as well as friend Bill Paxton, James Cameron embarks on an unscripted adventure back to the wreck of the Titanic where nearly 1,500 souls lost their lives almost a century ago.

For the 20th anniversary of "Titanic," James Cameron reopens the file on the disaster.

James Cameron and Simcha Jacobovici go on an adventure to find the lost city of Atlantis by using Greek philosopher Plato as a virtual treasure map.

The history of cinematic sound, told by legendary sound designers and visionary filmmakers.

National Geographic's riveting effort recounts all 12 crewed missions using only archival footage, photos and audio.

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.

An astonishing journey revealing the awesome power of the natural world. Over the course of one single day, we track the sun from the highest mountains to the remotest islands to exotic jungles.

The Captains is a feature-length documentary film written and directed by William Shatner. The film follows Shatner as he interviews the other actors who have portrayed starship captains in the Star Trek franchise.

David Attenborough takes viewers on a breathtaking journey showing there is nowhere more vital for our survival, more full of life, wonder, or surprise, than the ocean. Through spectacular sequences featuring coral reefs, kelp forests and the open ocean, Attenborough shares why a healthy ocean keeps the entire planet stable and flourishing.

An IMAX 3D camera chronicles the effort of 7 astronauts aboard the Space Shuttle Atlantis to repair the Hubble Space Telescope.

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.

Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they support.