1971 - The Selling of the Pentagon, by Peter Davis and CBS News.
1976 - Harlan County, U.S.A., by Barbara Kopple, about the June, 1973, coal miner strike at the Brookside Mine in Harlan County, Kentucky, that lasted for over a year when the miners joined with the United Mine Workers of America and refused to sign the contract offered by the Eastover Mining Company.
1981 - Brooklyn Bridge, by Ken Burns
1982 - Atomic Cafe, by Jayne Loader and Kevin Rafferty
1984 - The World of Tomorrow, by Lance Bird about the 1939 New York World's Fair.
1988 - The Thin Blue Line, by Errol Morris, used re-enactments about the murder of a policeman in Dallas
1989 - Roger & Me, by Michael Moore, about GM leader Roger Smith and Flint, Michigan
1990 - The Civil War, by Ken Burns, PBS series seen by 39 million on 5 consecutive nights Sept. 23-27.
1991 - Hearts of Darkness: A Filmmaker's Apocalypse, about the making of Francis Ford Coppola's Apocalypse Now in 1979
1992 - Panama Deception, by Barbara Trent, on the 1989 invasion of Panama
1992 - Lessons of Darkness, by Werner Herzog, about the Kuwait oil fires of 1991.
1993 - The War Room, on the managers of Clinton's 1992 campaign.
1994 - Hoop Dreams, by Steve James, follows two boys from Chicago who want to be pro basketball players.
1998 - Image of an Assassination: A New Look at the Zapruder Film
2002 - Bowling for Columbine, by Michael Moore about America's gun violence.
2003 - Capturing the Friedmans
2003 - Wild Parrots of Telegraph Hill, by Judy Irving, about homeless musician Mark Bittner and his flock of parrots in San Francisco
2003 - Fog of War: Eleven Lessons from the Life of Robert S. McNamara, by Errol Morris
2004 - Going Upriver: The Long War of John Kerry, on Senator John Kerry's tour of duty in Vietnam, his involvement in the peace movement
2004 - Fahrenheit 9/11, Michael Moore's film made $119 million, setting an earnings record for a nonfiction film
2004 - Born Into Brothels: Calcutta's Red Light Kids, by Zana Briski, Ross Kauffman
2005 - Murderball, about quadriplegics who play rugby in wheelchairs to compete in the Paralympic Games in Athens, Greece.
2005 - Grizzly Man, by Werner Herzog, about Timothy Treadwell and his girlfriend, Amie Huguenard who were killed in Alaska by a grizzly bear in October 2003.
2005 - Mad Hot Ballroom, by Marilyn Agrelo, about New York City schoolkids learning ballroom dancing.
2005 - Enron: The Smartest Guys in the Room, by Alex Gibney, based on the book by reporters Bethany McLean and Peter Elkind.
2005 - No Direction Home: Bob Dylan, by Martin Scorsese
2005 - March of the Penquins, the French film that made $76 million in 2005.