A documentary examining the capture and counting of ballots in elections in the United States.

Tradition clashes with contemporary culture in a village in the Mexican jungle.

Baseball legends and scientists explore the magic within the 396 milliseconds it takes a fastball to reach home plate, and decipher who threw the fastest pitch ever.

When a programmer is hired to create the ideal personality for an automated call center, his attempts to quantify what it means to be human throws his life into chaos.

A documentary exploring climate change in Alaska, the state hardest hit by global warming to date, and how what is happening there will soon affect us all.

The story of the relationship between Karamakate, an Amazonian shaman and last survivor of his people, and two scientists who work together over the course of 40 years to search the Amazon for a sacred healing plant.

The story of a woman whose paradigm-changing research helped launch modern neuroscience and redefined our understanding of the brain.

A look at the history of organic agriculture, and its future.

In Pittsburgh, accomplished pathologist Dr. Bennet Omalu uncovers the truth about brain damage in football players who suffer repeated concussions in the course of normal play.

Filmmakers Martin Scorsese, David Fincher, Wes Anderson, and others discuss the legacy of Alfred Hitchcock and the influential book "Hitchcock" by François Truffaut.

Four retired astronomers reunite in a journey across the American Southwest.

A look at seven communities around the world with the proposition that we can seize the crisis of climate change to transform our failed economic system into something radically better.

The Anthropologist considers the fate of the planet from the perspective of an American teenager. Over five years, she travels alongside her mother, an anthropologist studying the impact of climate change on indigenous communities.

Addicted to drugs and alcohol, a housewife's self-destructive behavior starts to take its toll on her husband and two young children.

The inspiring story of Claude Lorius who has dedicated his life to studying the icescapes of Antarctica. His groundbreaking discoveries would sound the alarm for the global warming crisis and expose humankind's devastating impact on the Earth's climate.

In a post-apocalyptic world in which 90 percent of the human population is dead or missing and drones fill the sky, a 16-year old boy sets out to find his father with his DR1 drone companion.

In 1961, famed social psychologist Stanley Milgram conducted a series of radical behavior experiments that tested ordinary humans willingness to obey authority.

Filmmaker Patricio Guzmán examines the link between Patagonian waterways and genocide.

Two parallel stories about characters trapped in illogical endless spaces: two brothers and a detective locked on an infinite staircase, and a family locked on an infinite road—for a very long time.

When astronauts mistakenly leave Mark Watney behind on Mars, the stranded visitor must use his wits, spirit, and scientific know-how to find a way to survive on the hostile planet.

After spending 170 days and 71 million miles in orbit on the International Space Station, astronaut Ron Garan had a transformative experience.

Undercover activists try to stave off a man-made mass extinction.

Three elite climbers fight through obsession and loss as they struggle to climb Mount Meru.

In 1971, Stanford Professor Philip Zimbardo conducts a controversial psychology experiment in which college students pretend to be either prisoners or guards, but the proceedings soon get out of hand.