Mustang!
is a 1959 American Western film directed by Tom Gries and starring Jack Buetel[1] The film was made in 1955, when Champ Butler recorded the film's theme tune.
[2] In the hills and forest surrounding a horse-breeding ranch, an unbroken wild mustang has been a constant challenge to the ranch owner.
To keep the animal from getting killed for being untamed, the ranch owner's son and daughter decide to try and see if they can get and win the trust of the mustang together.