Without Bias

Commissioned to make a propaganda film about the 1936 Olympic Games in Germany, director Leni Riefenstahl created a celebration of the human form. This first half of her two-part film opens with a renowned introduction that compares modern Olympians to classical Greek heroes, then goes on to provide thrilling in-the-moment coverage of some of the games' most celebrated moments, including African-American athlete Jesse Owens winning a then-unprecedented four gold medals.

Commissioned to make a propaganda film about the 1936 Olympic Games in Germany, director Leni Riefenstahl created a celebration of the human form. Where the two-part epic's first half, Festival of the Nations, focused on the international aspects of the 1936 Olympic Games held in Berlin, part two, The Festival of Beauty, concentrates on individual athletes such as equestrians, gymnasts, and swimmers, climaxing with American Glenn Morris' performance in the decathalon and the games' majestic closing ceremonies.

Murilo Peres and Pedro Barros get a once-in-a-lifetime pass to roll on the fabled curves of some undisputed masterpieces of modern architecture. Oscar Niemeyer remains one of the most important architects in modern history. The Brazilian visionary, who died in 2012 aged 104, elevated modern architecture beyond the realms of function and created buildings that are works of art and express the highest attributes of humanity. His work with reinforced concrete in particular created new architectural forms and possibilities, eschewing the tyranny of angles to create waves and swooping arches of such soaring beauty that they represent nothing less than physical poetry.

With seven Winter X-Games gold medals and a career spanning twenty years, Tanner Hall has cemented himself as an icon and legend in the sport of skiing. Now, at age 35, he’s decided to enter the Freeride World Tour; a five-stop competition circuit in which skiers are judged on their ability to descend through rugged, un-groomed terrain. Having never competed in a freeride competition, Tanner embarks on the latest chapter of his career, struggling against the limits of an aging body while confronting the darkest memories of his past.

The ascend and mental battle of Marc Rochat into the elite world of Slalom skiing.

Three years in the making in conjunction with the BBC. Using never seen before home movies, photos and eye witness accounts - this is the inside story of the world's biggest motorsport disaster.

Abby Wambach, the soccer phenom, has maintained an astonishing level of success, from helping the Florida Gators win their first and only national championship, to collecting a Founders Cup title with the WUSA's Washington Freedom and earning two Olympic gold medals.

Cassius X puts a period of often-overlooked history into the spotlight – the period when Cassius Clay fought his way to achieving his lifelong dream of becoming World Heavyweight Champion while embarking on a secret spiritual journey.

Henry Rollins narrates Lilly Scourtis Ayers' no-holds-barred profile of volatile Bay Area punk legend Marian Anderson, whose hypnotic beauty, devil-may-care rebellion and shocking sexual exploits onstage launched her to infamy before tragically dying of a heroin overdose at the tender age of 33.