Look-Out Sister (1947)

"When he's not singin', he's shootin'. When he's not shootin', he's lovin'!"

A famous bandleader, suffering from overwork and exhaustion, goes to a sanitarium for a rest. While there he dreams of being out west at a dude ranch, where he finds himself involved in the beautiful owner's struggle to keep her ranch from falling into the hands of the villain, who wants either her or her ranch (or, preferably, both).