Neptune's Daughter is a 1949 American Technicolor musical romantic comedy film released by Metro-Goldwyn-Mayer starring Esther Williams, Red Skelton, Ricardo Montalbán, Betty Garrett, Keenan Wynn, Xavier Cugat and Mel Blanc.

It was directed by Edward Buzzell, and features the debut of the Academy Award–winning song "Baby, It's Cold Outside" by Frank Loesser.

Although she initially rejects an offer by Joe Backett to become his business partner at the Neptune swimming suit design company, aquatic ballet dancer Eve Barrett changes her mind when she considers the publicity potential of the job.

One day, Joe learns that a South American polo team will be playing a big match in town, and he and Eve begin planning a swimming spectacle for the event.

The following day, while giving a tour of the Neptune bathing suit factory, Eve meets Jose and warns him to stay away from her sister.

Jose is confused by the warning but because he is attracted to Eve, he pretends to understand and agrees to break his presumed date with Betty.

After filming was done, Williams's doctor ordered her to stay away from activity, and she instead gave swimming lessons to blind children.

[1][9] A 1949 New York Times review of the film called it a "great big beautiful musical, full of slickness and Technicolored plush, models and Xavier Cugat rhythm.

The 5 disc set contained digitally remastered versions of four other Williams's films: Bathing Beauty (1944), Easy to Wed (1946), On an Island with You (1948) and Dangerous When Wet (1953).