Deep sea exploration : the last frontiers on Earth

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.

The life of Bambi, a male roe deer, from his birth through childhood, the loss of his mother, the finding of a mate, the lessons he learns from his father, and the experience he gains about the dangers posed by human hunters in the forest.

A look behind the lens of Christopher Nolan's space epic.

A young penguin, driven by his instinct, embarks on his first major trip to an unknown destination.

In 1997, Louis Theroux made a documentary about the world of male porn performers in Los Angeles. 15 years later, he returns to find a business struggling with the deluge of free porn on the internet. Louis revisits some of the original programme's contributors as well as meeting the latest crop of porn performers dreaming of porn stardom.

A new mother’s memories of her own youth prepare her to navigate motherhood in the increasingly challenging world that polar bears face today.

A documentary on the making of the three Godfather films, with interviews and recollections from the film makers and cast. This feature also includes the original screen tests of some of the actors for "The Godfather" film, and some candid moments on the set of "The Godfather: Part III."

A group of British children aged 7 from widely ranging backgrounds are interviewed about a range of subjects. The filmmakers plan to re-interview them at 7 year intervals to track how their lives and attitudes change as they age.

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

Disneynature’s Elephant follows African elephant Shani and her spirited son Jomo as their herd make an epic journey hundreds of miles across the vast Kalahari Desert. Led by their great matriarch, Gaia, the family faces brutal heat, dwindling resources and persistent predators, as they follow in their ancestors’ footsteps on a quest to reach a lush, green paradise.

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.

On September 15, 1963, a bomb destroyed a black church in Birmingham, Alabama, killing four young girls who were there for Sunday school. It was a crime that shocked the nation--and a defining moment in the history of the civil-rights movement. Spike Lee re-examines the full story of the bombing, including a revealing interview with former Alabama Governor George Wallace.

Journey into the extraordinary world of "The Witcher" — from casting the roles to Jaskier's catchy song — in this behind-the-scenes look at the series.

The story of Steve, an Adélie penguin, on a quest to find a life partner and start a family. When Steve meets with Wuzzo the emperor penguin they become friends. But nothing comes easy in the icy Antarctic.

Explore how writers Steven Moffat and Mark Gatiss created the hit television sensation. Take a personal voyage through the versions of Holmes that have served as inspirations for the new series - the original stories, their factual origins, hundreds of film adaptations - to arrive at their thoroughly modern Sherlock. Moffat and Gatiss explain the challenges they encountered adapting the original adventures of the iconic super-sleuth. Go behind the scenes on the set of the hit television series, including interviews with actors Benedict Cumberbatch, Martin Freeman and Lara Pulver, who talk about the reinvention of their fictional characters.

Narrated by Golden Globe winner, Donald Sutherland, this is the incredible story of Ailo, the little reindeer. This uplifting tale follows the journey of baby Ailo as he navigates his first year of life in the snowy landscapes of a picturesque Lapland. Frail and vulnerable, Ailo must learn to walk, run, leap and hide to ensure he survives the long, treacherous journey with the herd. Ailo’s Journey is an inspirational story, in which a bleak wilderness is warmed by a mother’s endless love as she watches over Ailo in his incredible adventures with other creatures of the Arctic.

Featuring new, previously unseen footage documenting the bizarre and unsettling things that happened to filmmakers David Farrier and Dylan Reeve as Tickled premiered at film festivals and theaters in 2016. Lawsuits, private investigators, disrupted screenings and surprise appearances are just part of what they encounter along the way. Amidst new threats, the duo begins to answer questions that remained once the credits rolled on Tickled, including whether the disturbing behavior they uncovered will ever come to an end.

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their young. They walk, marching day and night in single file 70 miles into the darkest, driest and coldest continent on Earth. This amazing, true-life tale is touched with humour and alive with thrills. Breathtaking photography captures the transcendent beauty and staggering drama of devoted parent penguins who, in the fierce polar winter, take turns guarding their egg and trekking to the ocean in search of food. Predators hunt them, storms lash them. But the safety of their adorable chicks makes it all worthwhile. So follow the leader... to adventure!!

Learn the incredible behind-the-scenes story of how the original Star Wars movie was brought to the big screen in this fascinating documentary hosted by C-3PO and R2-D2 which includes interviews with George Lucas and appearances by Mark Hamill, Harrison Ford and Carrie Fisher.

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.