Paddy Whacked: The Irish Mob (2006), a documentary tracing the rise and fall of the Irish mob, including an alleged involvement in the John F. Kennedy assassination.

Kings of Black Comedy is a 2002 documentary tracing the use of humour by black performers to combat racial prejudice.

In 1982, with wife Chieko Schrader, he co-wrote The Killing of America, a documentary tracing the origins of U.S. violence.

The work itself, running about an hour and 40 minutes, is preceded by a documentary tracing the elaborate preparations for this performance, the widely heralded premiere on June 28 in Liverpool Cathedral in England.

"Berkeley in the 60's," Mark Kitchell's sweeping, event-filled documentary tracing both the euphoric rise of student activism and the forces that led to its dissolution, occasionally views the past from a comparably long distance.

Gekko's bottom line crudely sums up the operative theory in "Money and Power: The History of Business," a surprisingly breezy two-hour documentary tracing the evolution of business over the past millennium.

Another high point will be on May 6, with the world premiere of Michael Apted's "China: Moving the Mountain," a 70-minute documentary tracing the events leading to the 1989 uprising in Tiananmen Square.

Carlos Saura's superb documentary tracing the history of the fiery, furiously pent-up Spanish dance was shown at the New York Film Festival in 1995 and had a theater run in 1997.

A documentary tracing the extraordinary efforts of a young American woman to learn the fate of her father, declared missing in Vietnam 26 years ago.