The Marquise(1980)

The only period comedy written by Noel Coward. France, 1736. Two distinguished families are celebrating the engagement of their children. The young couple are putting on a brave face, but neither is happy. Adrienne, daughter of the Compte, is secretly in love with her father's penniless secretary, while Miguel, the Duke's son, has lost his heart to a dancer in Paris. An unexpected visitor arrives on the scene.