Big Foot brings together eyewitnesses who relate their encounters with the legendary and mysterious creature. The film probes the intriguing question of whether Big Foot, Sasquatch, and Yeti are myth or reality. Film highlights include possible authentic footage of the beasts.

People go and search for the legendary Bigfoot creature.

A description and enactment of the discovery of gold by James Marshall, and the role played by John Sutter. Preserved by the Academy Film Archive.

A wordless portrait of sculptor Jessica Jackson Hutchins shows us the artist in the process of transforming clay into uncanny forms.

Once hunted to extinction, the California Grizzly survives only as a symbol, frozen on the state flag, waving over the land it once roamed. A century later, will California bring back its lost icon or leave it in myth?

"I especially hope to inspire young women, because I often feel like so much emphasis is put on how beautiful you are, and how thin you are, and not a lot of emphasis is put on what you can do and how smart you are. I'd like to change the emphasis of what's important when looking at a woman." Filmed in San Francisco in 2000, Margaret Kilgallen (1967-2001) discusses the female figures she incorporated into many of her paintings and graffiti tags. Loosely based on women she discovered while listening to folk records, watching buck dance videos, or reading about the history of swimming, Kilgallen painted her heroines to inspire others and to change how society looks at women. Three of Kilgallen's heroines—Matokie Slaughter, Algia Mae Hinton, and Fanny Durack—are shown and heard through archival recordings. Kilgallen is shown tagging train cars with her husband, artist Barry McGee, in a Bay Area rail yard and painting in her studio at UC Berkeley (source: Art21).

The award-winning film documents the amazing, true-life adventures of Billy Meier, the only proven UFO contactee.

Explore the 1928 collapse of the St. Francis Dam, the second deadliest disaster in California history. A colossal engineering and human failure, the dam was built by William Mulholland, a self-taught engineer who ensured the growth of Los Angeles by bringing the city water via aqueduct. The catastrophe killed more than 400 people and destroyed millions of dollars of property.

Featuring testimony from friends, neighbours, journalists and detectives at the heart of the search for Shannon Matthews, this is the inside story of a case that became a defining moment in British public life, a missing child caught in the middle of a media frenzy, and a case that sparked debates that still resonate today. This two-part series explores how truth, trust and community unravelled under the weight of suspicion and scrutiny.

Riding Giants is story about big wave surfers who have become heroes and legends in their sport. Directed by the skateboard guru Stacy Peralta.

Gigantic machine combs beach in southern California and retrieves articles lost in sand; synthetic gems made by new chemical process; aviation school holds classes in grounded transport plane; how seaweed is processed for scientific use.

In the shady campgrounds of Yosemite valley, climbers carved out a counterculture lifestyle of dumpster-diving and wild parties that clashed with the conservative values of the National Park Service. And up on the walls, generation after generation has pushed the limits of climbing, vying amongst each other for supremacy on Yosemite's cliffs. "Valley Uprising" is the riveting, unforgettable tale of this bold rock climbing tradition in Yosemite National Park: half a century of struggle against the laws of gravity -- and the laws of the land.