La Galette du roi (1986)

In this conventional, broadly comic farce of greed and royal matrimony, nearly bankrupt businessman Victor Harris is marrying Maria-Helena, a princess who comes with a dowry that is made up of one half of her island kingdom. Her father, the cowardly King Arnold III is counting on the money this marriage will bring him. The country is now almost bankrupt because of the king's gambling debts. As Harris and the king look forward to their illusory profits from the royal merger, other characters add some liveliness to the otherwise predictable story.

Unfortunately the movie La Galette du roi is not yet available on HBO Max.