The Dolly Sisters (1945)

The Dolly Sisters starring Betty Grable and June Haver is 20th Century Fox's 1945 musical biography about the titular vaudeville performers from the turn of the 20th century. Although the music and dancing are enjoyable, the lack of any story on which to hang these musical numbers is clearly evident (although sometimes it plays like For Me And My Gal with a second gal added). Vaudeville performer Harry Fox (played by John Payne) is also part of the story (or lack thereof) as is a song performed by the sisters in blackface; the former I get, the latter I don't.

---

...How To Marry A Millionaire (1953)

How to Marry A Millionaire is an absolute charmer with three lovely leading ladies (Marilyn Monroe, Lauren Bacall, Betty Grable) playing exquisitely with their respective glasses, hamburgers, and snow suit. The film has the airiness of a musical (although it's just a plain old light comedy) and four men who hold their own against our leading babes (Dick Powell, Rory Calhoun, David Wayne and Cameron Mitchell). Catch this one anytime you can.