Elsa the Lioness

Poet John Betjeman is shown visiting locations including Vauxhall Park, Aldersgate Street station, Camden Town and Hatfield, where he recites a handful of his poems.

The Dardenne brothers discuss their early documentary films, their relationship with Armand Gatti (who inspired them to become filmmakers), the impact various political events had on their career and work and the shooting of When Leon M.s Boat Went Down the Meuse for the First Time.

Blue Whales: Return of the Giants 3D takes viewers on a journey of a lifetime to explore the world of the magnificent blue whale, a species rebounding from the brink of extinction. Following two scientific expeditions—one to find a missing population of blues off the exotic Seychelles Islands, the other to chronicle whale families in Mexico’s stunning Gulf of California—the film is an inspirational story that transforms our understanding of the largest animal ever to have lived.

Jhalana’s refuge, India's urban leopard habitat, is controlled by the strong and experienced Bahadur. But his dominance is being challenged – by his son, Rana! Once a quiet youngster, Rana has grown into an ambitious young male. But in the animal kingdom, power is not inherited – it is fought for with strength and persistence. Rana is not content with just securing his place; he wants more. To fulfill his ambitions, he forms a bond with one of his father's females, and what begins as a simple interaction soon turns into a powerful partnership. The aging Bahadur has held his territory for six years and will not tolerate his son's claim. Rana faces a decision: retreat or fight. But Rana follows his instincts.

Distressing accounts and images of historical warfare and the ongoing issues of a population suffering from hunger fill this short documentary about the North Ethiopian region of Tigray.

Leopards are considered to be extremely shy big cats. Only a few animals can match the elegance of these feline predators. The cautious hunters are rarely seen in the wild for more than a few seconds. The cats can be observed more extensively when they rest asleep in a tree and recover from the mostly nocturnal hunt. But a leopardess has switched to hunting in broad daylight. Its home along the brook bed of the Olare Orok offers everything a mother needs to protect and nourish its offspring: picturesque rocks and dense bush, a landscape in which the big cat can disappear in seconds to sneak up on potential prey, which includes warthogs and antelopes. But hyenas and lions are always ready to contest for its territory and nourishment. The renowned wildlife filmmaker Reinhard Radke managed to capture astonishing insights into the social life and hunting tactics of the ambush hunters in the Maasai Mara.

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!!

Introduced by Sir David Attenborough, and presented by environmentalist Chris Baines, The Living Thames is an odyssey along the river as it meanders through London and flows out to sea, exploring its ever-changing ecology.

A look at the life on the Galápagos Islands.

A showcase for breathtaking shark behaviour, covering a wide variety of species across the coastal waters of the US.

Almost 50 years after the film’s release, all the Overlook Hotel’s sets are thought to have been destroyed, but one last filming site remains.

A documentary of insect life in meadows and ponds, using incredible close-ups, slow motion, and time-lapse photography. It includes bees collecting nectar, ladybugs eating mites, snails mating, spiders wrapping their catch, a scarab beetle relentlessly pushing its ball of dung uphill, endless lines of caterpillars, an underwater spider creating an air bubble to live in, and a mosquito hatching.

The cast and crew talk about the core themes of the film and the seeds of the film.

A look behind the scenes of Christopher Nolan's film "Oppenheimer" about an American scientist and his role in the development of the atomic bomb.

Robi Watkinson and Emma Hodson travel across Britain and the Netherlands documenting the story of the rewilding movement from its inception, to the return of the beaver, bison and perhaps one day, the lynx to Britain.

Bill and Ginny are invited by a naturalist friend to take care of his home in Africa while he is away, and they find themselves adopted by three orphan elephants.

On the Great Plains below Mount Kilimanjaro in Kenya, lions are attacking Maasai cattle, as they have for hundreds of years. And the proud Maasai warriors have hunted them ruthlessly in return so that now only about 2,000 remain in the country. If their numbers drop any lower, their populations will not be sustainable. Now the Maasai elders and chiefs are recognizing that the threat to their lions is also a threat to their way of life, and have forbidden the warriors from hunting them. Wildlife filmmaker Kire Godal, with the support of executive producers Dereck and Beverly Joubert, captures firsthand the struggle of these modern-day warriors who are reinventing their traditions to help save the lions they once prided themselves on killing.

“Aguas Negras” is an experimental documentary about the Cuautitlán River. The film examines the passage of time and the pollution of the river by focusing on conversations with multiple generations of women in the filmmaker's family that have grown up by the river in a municipality identified as having the highest perception of insecurity in the State of Mexico.

An examination of how the American flag can be reclaimed as a symbol of unity for all Americans, with a focus on the LGBTQ community.

Follow ocean legend Sylvia Earle, renowned underwater National Geographic photographer Brian Skerry, writer Max Kennedy and their crew of teenage aquanauts on a year-long quest to deploy science and photography to inspire President Obama to establish new Blue Parks to protect essential habitats across an unseen American Wilderness.