A look at the reality and fiction behind Hollywood's representation of asteroid impacts.

When her single mom runs off to California, Laudurée, a passionate environmentalist, clings to her rural home and a carbon sequestration experiment.

Erin Brockovich, Robert Glennon, and Jay Famiglietti are among those interviewed in Jessica Yu's investigation of the world's looming water shortage.

Faced with both her hot-tempered father's fading health and melting ice-caps that flood her ramshackle bayou community and unleash ancient aurochs, six-year-old Hushpuppy must learn the ways of courage and love.

A pair of young lovers flee their New England town, sparking a frenzied search by the town's quirky inhabitants.

The race to protect Earth's last untouched ocean—the Ross Sea in Antarctica—from our insatiable appetite for fish. The film raises the simple ethical question: do we fish the last ocean or do we protect it?

In the near future, an ex-jewel thief receives a gift from his son: a robot butler programmed to look after him. But soon the two companions try their luck as a heist team.

A burgeoning stand-up comedian struggles with the stress of a stalled career, a stale relationship, and the wild spurts of severe sleepwalking he is desperate to ignore.

Bestiaire is a mesmerizing meditation on the relationships between animals and people through the seasons at a Quebec safari park.

A young surfer learns the secrets of surviving the towering waves of the infamous Mavericks surf break.

Tony DeRose, senior scientist and research group lead at Pixar Animation Studios, delivers an illustrated lecture on the extraordinary contribution of mathematics to animated films.

Within the coming decades we will be able to create computers with greater-than-human intelligence, bio-engineer our species, and redesign matter through nanotechnology. How will these technologies change what it means to be human?

A video game villain wants to be a hero and sets out to fulfill his dream, but his quest brings havoc to the whole arcade where he lives.

Follow National Geographic photographer James Balog across the Arctic as he deploys time-lapse cameras designed for one purpose: to capture a multi-year record of the world's changing glaciers.

A man in an iron lung who wishes to lose his virginity contacts a professional sex surrogate with the help of his therapist and priest.

A young man who survives a disaster at sea is hurtled into an epic journey of adventure and discovery. While cast away, he forms an unexpected connection with another survivor: a fearsome Bengal tiger.

Jeremy Irons sets out to discover the extent and effects of the global waste problem, as he travels around the world to beautiful destinations tainted by pollution.

After a stint in a mental institution, former teacher Pat Solatano moves back in with his parents and tries to reconcile with his ex-wife. Things get more challenging when Pat meets Tiffany, a mysterious girl with problems of her own.

Unsung pioneer landscape architect Jens Jensen became one of the nation’s most influential urban designers and early conservationists, shaping the Midwest’s physical and cultural landscape and championing the need for nature in our cities.

Sbórnia is an isolated, independent, and anarchist state. When the giant wall that separates Sbórnia from the rest of the world collapses, the Sbórnians suffer a towering cultural shock.

Theater troupe the Unseen Ghost Brigade builds a raft in 2010 and journeys down the Mississippi River.

This documentary takes a look at the world's wild places through the eyes of bears.

Teenaged birding fanatic David Portnoy takes an epic road trip with his best friends to solidify their place in birding history.

Legendary explorer Thor Heyerdahl makes an epic 4,300-mile crossing of the Pacific on a balsawood raft in 1947, in an effort to prove that it was possible for South Americans to settle in Polynesia in pre-Columbian times.