Santa Fe Trail is a 1940 American western film directed by Michael Curtiz and starring Errol Flynn, Olivia de Havilland, Raymond Massey and Ronald Reagan. Written by Robert Buckner, the film is about the abolitionist John Brown and his fanatical attacks on slavery as a prelude to the Civil War. Subthemes include J.E.B. Stuart and George Armstrong Custer as they duel for the hand of Kit Carson Holliday.

Source: IMDB