Woolly Mammoth: Secrets from the Ice

Reconnecting with a pack of wolves he has followed for seven years, Bertie sets out to capture one of the Arctic's most dangerous and rarely filmed hunts: wolves taking on a bull moose, prey roughly ten times their size. Led by Kona, a striking white breeding male, the pack faces a critical winter as dwindling food supplies, an encroaching rival wolf and an aging leader threaten its survival.

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.

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.

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.

Acclaimed filmmaker Werner Herzog travels to Antarctica, where he finds a desolate, beautiful landscape, largely untouched by human hands, and a group of truly unique people who risk their lives to study it. Centered at McMurdo Station, the United States' largest Antarctic research center, Herzog explores the minds of the scientists willing to abandon civilization and endure volatile conditions to learn more about the continent's wildlife and awe-inspiring natural wonders.