Ten of Muhammad Ali’s former rivals pay tribute to the three-time world heavyweight champion.

Documenting the recovery of a Tuskegee Airman’s downed WWII plane in Lake Huron and uncovering its 80-year-old mystery through underwater archaeology, firsthand accounts, and footage of the wreck.

Purple Van Man, is 8 out of 10 Cats star Sean Lock’s fantastic new DVD, recorded in front of a sold out audience at London’s Hammersmith Apollo. We all know what white van man thinks about the world we live in but it’s time to hear a different voice, the purple van man’s voice. Filled with gags, opinions, deft observations and some silly voices, this is Sean Lock doing what he does best, spouting inspired jibber jabber as he crosses the country in his purple van. He will make you laugh like a drunken horse.

One of Nature’s smallest birds, a Black-chinned Hummingbird, built her nest on a backyard clothesline. Stunning close-up photography brings you into the nest as the hatchlings emerge from their shells. This enchanting and remarkably detailed nature film reveals the tireless efforts of the mother who raises and cares for two chicks from their hatching to their leaving the nest.

An exploration of the rise of Héroes del Silencio, the seminal 1980s Spanish rock band anchored by Enrique Bunbury.

This film chronicles the health and social problems that African albinos face and details the fight waged on their behalf by advocacy groups in Spain.

A documentary about today’s young adult hookup culture and the stories in pop-culture that influence it.

Virunga in the Democratic Republic of the Congo is Africa’s oldest national park, a UNESCO world heritage site, and a contested ground among insurgencies seeking to topple the government that see untold profits in the land. Among this ongoing power struggle, Virunga also happens to be the last natural habitat for the critically endangered mountain gorilla. The only thing standing in the way of the forces closing in around the gorillas: a handful of passionate park rangers and journalists fighting to secure the park’s borders and expose the corruption of its enemies. Filled with shocking footage, and anchored by the surprisingly deep and gentle characters of the gorillas themselves, Virunga is a galvanizing call to action around an ongoing political and environmental crisis in the Congo.

Almost a decade has elapsed since Bowiesque glam-rock superstar Brian Slade escaped the spotlight of the London scene. Now, investigative journalist Arthur Stuart is on assignment to uncover the truth behind the enigmatic Slade. Stuart, himself forged by the music of the 1970s, explores the larger-than-life stars who were once his idols and what has become of them since the turn of the new decade.

Wall Writers promises unprecedented access to the early years of American graffiti. Interviews with TAKI 183 and CORNBREAD, along with other legendary artists, illuminated a time when a new form of wall writing emerged from dilapidated city neighborhoods.

Famed composer Gustav Mahler reflects on the tragedies of his life and failing marriage while traveling by train.

A story of ancient lands and the spirit of the tribes that inhabit them, of rivalries and heritage; European invasions and corridor presentations, chaos, comedy and the transformative powers of the beautiful game.