Chicago-based Kartemquin Films announced Siegel’s death on its website Tuesday. “Bill was an erudite, passionate and intelligent activist and independent thinker as well as being a gifted filmmaker and cherished friend,” the statement read. “He has been a valued member of the Kartemquin community since he first worked as a researcher on Hoop Dreams (1994). We will miss him greatly.” The cause of death is not immediately known.
Siegel won an Emmy for his 2013 documentary, The Trials of Muhammad Ali, and he shared an Oscar nomination in the best documentary category for The Weather Underground.
The Trials of Muhammad Ali documented the heyday of boxer Muhammad Ali’s career, with special focus on his conversion to Islam and his refusal to fight in the Vietnam War. In addition to the Emmy win,