Columbia subject headings:
Harvard subject headings:
Actors--United States--20th century.
Documentary films
Korvin, Charles, 1907-1998.
Spain--History--Civil War, 1936-1939.
Princeton subject headings:
Actors--20th century--Biography.
Interviews.
Korvin, Charles--Interviews.
Korvin, Charles.
Socialists--20th century--Biography.