Bill produced and directed the award-winning feature documentary, "Brick by Brick: A Civil Rights Story," about housing segregation in contemporary America. The film focuses on Yonkers, New York and a landmark federal anti-discrimination lawsuit, US v. Yonkers. It depicts three families who broke barriers in their hometown. "Brick by Brick" first aired in 2007 on WNET, New York's PBS station. It continues to be shown in universities, law schools, and by activists in civil rights work.

Bill Kavanagh was also Field Producer on "Enemies of War," a feature documentary about human rights, war, peace, and murder in Central America that premiered on PBS's Independent Lens series in 2001.

In corporate media, brand content and communications, Bill's company, Kavanagh Productions, produces in several genres for clients worldwide.