Duchess of Idaho is a musical romantic comedy produced in 1950 by Metro-Goldwyn-Mayer. Directed by Robert Z. Leonard, it was the fourth film pairing Esther Williams and Van Johnson. It was shot mainly on location in Sun Valley, Idaho.
Christine Riverton Duncan (Esther Williams) attempts to play matchmaker for her lovelorn friend Ellen (Paula Raymond) by pursuing Douglas J. Morrissen, Jr. (John Lund), the man Ellen loves, all the way to Idaho. There, Christine decides to play a joke on Douglas. After boarding his train to Sun Valley, Christine wins the man's affections and then shocks him with hints that she expects a commitment. Once she's in Sun Valley, however, things become problematic when Christine falls in love with hotel bandleader Dick Layne (Van Johnson). During her time in Sun Valley, Christine wins the title of "Duchess of Idaho" in a dance contest.
In her autobiography, Million Dollar Mermaid, Williams called this a "re-hash of the Esther Williams formula: the mismatched lovers plot. It was enough to give one a case of cinematic deja vu."
Duchess of Idaho marked Eleanor Powell's first film appearance in six years as well as her last film appearance. Williams reported
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