The seventh of nine movies made together by Warner Brothers' romantic couple Olivia de Havilland and Errol Flynn.
Aptly enough, the movie made its world premiere in Santa Fe, NM.
Raymond Massey starred as John Brown again in Sept hommes en colère (1955), the main story of which is also the trial and hanging of the abolitionist.
Ronald Reagan got the part of George Custer on the strength of his success playing George Gipp in Knute Rockne All American (1940).
Olivia de Havilland recalled that Errol Flynn behaved badly toward her on set (she was dating James Stewart and believed Flynn was jealous).