Love Is a Ball(1963)

The hilariously mad story of all the best things in life that are not free... and the one thing that definitely is!

Etienne makes a good living out of marrying off poor but titled young men to rich but untitled young ladies. Millicent is now in his sights on the Riviera, and Grand Duke Gaspar is the bait. But what if Millicent starts to fancy planted chauffeur John instead, and Gaspar takes a shine to Etienne's secretary Janine?