Premieres on SO PBS World Sunday, Sept. 20 at 7 pm.

The Mexican visual artist David Alfaro Siqueiros (1896–1974) was one of the great Mexican artists of the 20th century and one of three great Mexican muralists (with Diego Rivera and José Clemente Orozco). As one of the primary advocates of modern public art, Siqueiros made his name on the world stage: he painted murals in Mexico, the U.S., Cuba, Chile, and Argentina; fought as a soldier in the Mexican Revolution and the Spanish Civil War; and even taught Jackson Pollock the drip technique in his experimental workshop in New York. Siqueiros was a controversy-stirring revolutionary and lifetime activist who lived with theatrical flair and painted on an epic scale.