My Outlaw Brother (1951)
My Outlaw Brother is a 1951 American film directed by Elliott Nugent, produced by Benedict Bogeaus, and starring Mickey Rooney, Wanda Hendrix, Robert Preston and Robert Stack. Filmed in Mexico and released through Eagle-Lion Classics, the picture is based on the book South of the Rio Grande by Max Brand and is sometimes referred to as My Brother, the Outlaw.
More at Wikipedia.