Searching for Skylab, America's Forgotten Triumph

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

Archival material from the original NASA film footage – much of it seen for the first time – plus interviews with the surviving astronauts, including Jim Lovell, Dave Scott, John Young, Gene Cernan, Mike Collins, Buzz Aldrin, Alan Bean, Edgar Mitchell, Charlie Duke and Harrison Schmitt.

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

Echo is a youngster who can't quite decide if it's time to grow up and take on new responsibilities-or give in to her silly side and just have fun. Dolphin society is tricky, and the coral reef that Echo and his family call home depends on all of its inhabitants to keep it healthy. But Echo has a tough time resisting the many adventures the ocean has to offer.

A look at the global culture and appeal of the LEGO building-block toys.

Filmed over 14 months with unprecedented access into the inner circle of the man and the sport, this is the first official and fully authorised film of one of the most celebrated figures in football. For the first time ever, the world gets vividly candid and un-paralleled, behind-closed-doors access to the footballer, father, family-man and friend in this moving & fascinating documentary. Through in-depth conversations, state of the art football footage and never before seen archival footage, the film gives an astonishing insight into the sporting and personal life of triple Ballon D'Or winner Cristiano Ronaldo at the peak of his career. From the makers of ‘Senna’ and ‘Amy’, Ronaldo takes audiences on an intimate and revealing journey of what it’s like to live as an iconic athlete in the eye of the storm.

A testament to NASA's Apollo program of the 1960s and '70s. Composed of actual NASA footage of the missions and astronaut interviews, the documentary offers the viewpoint of the individuals who braved the remarkable journey to the moon and back.

An unprecedented and intimate look at the life, work and enduring legacy of British actress Audrey Hepburn (1929-1993).

Dick Proenneke retired at age 50 in 1967 and decided to build his own cabin in the wilderness at the base of the Aleutian Peninsula, in what is now Lake Clark National Park. Using color footage he shot himself, Proenneke traces how he came to this remote area, selected a homestead site and built his log cabin completely by himself. The documentary covers his first year in-country, showing his day-to-day activities and the passing of the seasons as he sought to scratch out a living alone in the wilderness.

Documentary on the Shackleton Antartic expedition. A retelling of Sir Ernest Shackleton's ill-fated expedition to Antarctica in and the crew of his vessel 'The Endurance', which was trapped in the ice floes and frigid open ocean of the Antarctic in 1914. Shackleton decided, with many of his crew injured and weak from exposure and starvation, to take a team of his fittest men and attempt to find help. Setting out in appalling conditions with hopelessly inadequate equipment, they endured all weather and terrain and finally reached safety. Persuading a local team of his confidence that the abandoned team would still be alive, he set out again to find them. After almost 2 years trapped on the ice, all members of the crew were finally rescued.

A documentary highlighting the Soviet Union's legendary and enigmatic hockey training culture and world-dominating team through the eyes of the team's Captain Slava Fetisov, following his shift from hockey star and celebrated national hero to political enemy.

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.