This fascinating making-of documentary investigates the controversy and political atmosphere surrounding the production of Salt of the Earth, movingly chronicling the filmmakers' defiance of the blacklist. (BAM) Preserved by the Academy Film Archive in 2015.

At New Mexico's Empire Zinc mine, Mexican-American workers protest the unsafe work conditions and unequal wages compared to their Anglo counterparts. Ramon Quintero helps organize the strike, but he is shown to be a hypocrite by treating his pregnant wife, Esperanza, with a similar unfairness. When an injunction stops the men from protesting, however, the gender roles are reversed, and women find themselves on the picket lines while the men stay at home.