Jim Henson: His Sesame Street Story

On September 15, 1963, a bomb destroyed a black church in Birmingham, Alabama, killing four young girls who were there for Sunday school. It was a crime that shocked the nation--and a defining moment in the history of the civil-rights movement. Spike Lee re-examines the full story of the bombing, including a revealing interview with former Alabama Governor George Wallace.

Featuring never-before-seen footage, this documentary delivers a startling new look at the Peoples Temple, headed by preacher Jim Jones who, in 1978, led more than 900 members to Guyana, where he orchestrated a mass suicide via tainted punch.

For the 20th anniversary of "Titanic," James Cameron reopens the file on the disaster.

In 1936, Victor H. Green (1892-1960) published The Negro Motorist Green Book, a book that was both a travel guide and a survival manual, to help African-Americans navigate safe those regions of the United States where segregation and Jim Crow laws were disgracefully applied.

In 1997, Louis Theroux made a documentary about the world of male porn performers in Los Angeles. 15 years later, he returns to find a business struggling with the deluge of free porn on the internet. Louis revisits some of the original programme's contributors as well as meeting the latest crop of porn performers dreaming of porn stardom.