Additional Dialogue: The Letters of Dalton Trumbo
written by Christopher Trumbo, 1940- (1970); directed by Gordon Hunt, 1929-; performed by Christopher Trumbo, 1940-, Paul Winfield, 1939-2004, Harry Groener, 1951- and Jeff Corey, 1914-2002 (Los Angeles, CA: L.A. Theatre Works, 1970, originally published 1970), 1 hour 26 mins
