The Dolly Sisters (1945)

In 1904, Uncle Latsie comes to New York from Hungary with two little nieces, who immediately take to cafe dancing. In 1912 they're still at it, but to pay Uncle's card debts they decide to go into vaudeville. Singer Harry Fox, whom they meet en route, schemes to get them an audition with the great Hammerstein; but their resulting success takes them far out of Harry's league. Lots of songs with a little story.