Trumbo sisters took part in telling the story of their Communist Party member father

Nikola and Mitzi Trumbo were red-diaper babies, the children of Communist Party members in the U.S. Their father: screenwriter Dalton Trumbo, an Oscar winner for "Roman Holiday" and "The Brave One," and one of the high-profile members of the party. During the 1940s, Trumbo was the highest-paid...