Anjelica Huston narrates this profile of Jose Clemente Orozco (1883-1949), a political cartoonist who became one of the leading artists of the Mexican mural renaissance of the 1920s and '30s, and whose work inspired President Franklin D. Roosevelt to fund artists during the Great Depression. Among the works viewed: the fresco “Prometheus”; the 24-panel “Epic of American Civilization”; and “Dive Bomber and Tank,” which features six interchangeable panels.