Koko: A Talking Gorilla (1978)

Drawing from never-before-seen footage that has been tucked away in the National Geographic archives, director Brett Morgen tells the story of Jane Goodall, a woman whose chimpanzee research revolutionized our understanding of the natural world.

From the team behind Man on Wire comes the story of Nim, the chimpanzee who in the 1970s became the focus of a landmark experiment which aimed to show that an ape could learn to communicate with language if raised and nurtured like a human child. Following Nim's extraordinary journey through human society, and the enduring impact he makes on the people he meets along the way, the film is an unflinching and unsentimental biography of an animal we tried to make human. What we learn about his true nature - and indeed our own - is comic, revealing and profoundly unsettling.

From the heights of her modeling fame to her tragic death, this documentary reveals Anna Nicole Smith through the eyes of the people closest to her.

Embark on a delightful journey into the world of dogs in this documentary that reveals scientific and emotional insights about our lovable BFFs.

Several generations following Caesar's reign, apes – now the dominant species – live harmoniously while humans have been reduced to living in the shadows. As a new tyrannical ape leader builds his empire, one young ape undertakes a harrowing journey that will cause him to question all he's known about the past and to make choices that will define a future for apes and humans alike.

A series of interviews featuring linguist, philosopher and activist Noam Chomsky done in hand-drawn animation.

Vulgar, taunting texts blow up the phones of a teen and her boyfriend. Who's sending them — and why? This twisty documentary reveals the shocking answer.

Documentary sequel that offers a close-up look into the personal lives of the legendary porn stars who've survived the test of time and influenced popular culture. Blends rare interviews with erotic clips and additional appearances by Whoopi Goldberg, Steven Soderbergh and a host of adult stars, directors and trendsetters.

BBC Arena's documentary on the Dames of British Theatre and film featuring Maggie Smith, Eileen Atkins, Judi Dench and Joan Plowright on screen together for the first time as they reminisce over a long summer weekend in a house Joan once shared with Sir Laurence Olivier.

Al Pacino's deeply-felt rumination on Shakespeare's significance and relevance to the modern world through interviews and an in-depth analysis of "Richard III."