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When Allied forces liberated the Nazi concentration camps in 1944-45, their terrible discoveries were recorded by army and newsreel cameramen, revealing for the first time the full horror of what had happened. Making use of British, Soviet and American footage, the Ministry of Information’s Sidney Bernstein (later founder of Granada Television) aimed to create a documentary that would provide lasting, undeniable evidence of the Nazis’ unspeakable crimes. He commissioned a wealth of British talent, including editor Stewart McAllister, writer and future cabinet minister Richard Crossman – and, as treatment advisor, his friend Alfred Hitchcock. Yet, despite initial support from the British and US Governments, the film was shelved, and only now, 70 years on, has it been restored and completed by Imperial War Museums under its original title "German Concentration Camps Factual Survey".

In 1999, Internet entrepreneur Josh Harris recruits dozens of young men and women who agree to live in underground apartments for weeks at a time while their every movement is broadcast online. Soon, Harris and his girlfriend embark on their own subterranean adventure, with cameras streaming live footage of their meals, arguments, bedroom activities, and bathroom habits. This documentary explores the role of technology in our lives, as it charts the fragile nature of dot-com economy.

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

In this documentary, recovering addict and amputee John Wood finds himself in a stranger-than-fiction battle to reclaim his mummified leg from Southern entrepreneur Shannon Whisnant, who found it in a grill he bought at an auction and believes it therefore to be his rightful property.

Drawn from a never before seen cache of personal footage spanning decades, this is an intimate portrait of the Sri Lankan artist and musician who continues to shatter conventions.

A look behind the curtain of Washington politics following three "renegade" Republican Congressmen as they bring libertarian and conservative zeal to champion the President’s call to “drain the swamp.”

The definitive portrait of one of sport's most inspirational, influential figures - whose legacy lives on far beyond the football field.

Alex Gibney explores the phenomenon of Stuxnet, a self-replicating computer virus discovered in 2010 by international IT experts. Evidently commissioned by the US and Israeli governments, this malware was designed to specifically sabotage Iran’s nuclear programme. However, the complex computer worm ended up not only infecting its intended target but also spreading uncontrollably.

An exploration of the heavy metal scene in Los Angeles, with particular emphasis on glam metal. It features concert footage and interviews of legendary heavy metal and hard rock bands and artists such as Aerosmith, Alice Cooper, Kiss, Megadeth, Motörhead, Ozzy Osbourne and W.A.S.P..

Documentary about legendary Paramount producer Robert Evans, based on his famous 1994 autobiography.