Serengeti River Crossing

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 the remote and forgotten wilderness of Lake Natron, in northern Tanzania, one of nature's last great mysteries unfolds: the birth, life and death of a million crimson-winged flamingos.

A paralysingly beautiful documentary with a global vision—an odyssey through landscape and time—that attempts to capture the essence of life.

This documentary focuses on the actors and their journey over two summers to create the remake to the original IT, by Stephen King. The documentary originally released as bonus material, bundled with IT: Chapter Two.

African Cats captures the real-life love, humor and determination of the majestic kings of the savanna. The story features Mara, an endearing lion cub who strives to grow up with her mother’s strength, spirit and wisdom; Sita, a fearless cheetah and single mother of five mischievous newborns; and Fang, a proud leader of the pride who must defend his family from a once banished lion.

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.

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.

Ross McElwee sets out to make a documentary about the lingering effects of General Sherman's march of destruction through the South during the Civil War, but is continually sidetracked by women who come and go in his life, his recurring dreams of nuclear holocaust, and Burt Reynolds.

Stars of "The Walking Dead," Andrew Lincoln and Danai Gurira, walk down memory lane and visit iconic locations where pivotal moments between their characters, Rick and Michonne, were filmed.

Filmmaker Christopher Quinn observes the ordeal of three Sudanese refugees -- Jon Bul Dau, Daniel Abul Pach and Panther Bior -- as they try to come to terms with the horrors they experienced in their homeland, while adjusting to their new lives in the United States.