Frederick Wiseman (January 1, 1930 — February 16, 2026) was an American filmmaker, documentarian, and theatre director. As a documentarian, Wiseman has been noted for his ability to capture the nuances of life in American institutions such as prisons, hospitals, welfare offices, and high schools. He started out in 1963 by producing a narrative feature, The Cool World, an examination of the lives of Harlem teenagers. In the beginning, Wiseman was a staunch social reformist, and his films were calls for change.