During World War II, Reagan was separated for four years from his movie career. He served in the First Motion Picture Unit. After the war, Reagan co-starred in such movies such as in, "The Voice of the Turtle", "John Loves Mary", "The Hasty Heart", "Bedtime for Bonzo", "Cattle Queen of Montana", "Juke Girl", "This Is the Army", "The Winning Team", "Tennessee's Partner", and "Hellcats of the Navy", in which he worked with his wife, Nancy. Reagan's last movie was a 1964 movie "The Killers". Throughout his movie career, his mother, Nelle, often answered much of his fan mail.