After the Ball (1957)

Vesta Tilley is the daughter of a music-hall chairman who watches shows from the wings with great enthusiasm. One day, her father finds her dressed as a boy, singing to an audience of dolls. Her act, he believes, is good enough to be performed in front of a live audience. As time goes on, word of her spreads. Viewed as the first male impersonator, her fame leads her into marriage to a nobleman.