Ma cousine de Varsovie

Banker Gustave Gallet suffers from overwork. His doctor orders him to take a month in the country, long walks, and write an opera. When he arrives on his estate, he suspects his wife, Madeleine Lambert, is having an affair with André Roanne (she is). Up pops the cousin from Warsaw, Elvire Popesco, travelling with her lover and a couple of Great Danes on her way to seduce the King of Spain to release her fiance from prison. Mlle Lambert asks her to seduce Gallet, so she can be alone with Roanne. Gallet asks her to seduce Roanne, so he can compose his opera with an easy mind. She does both.

It's a funny farce, with Mlle Popesco very lively, but more than that, it is also an early screwball comedy. Screwball became prominent in the US when the Production Code shut down sex comedies, and so the movies could deal with such issues only elliptically, as matters of class warfare. In France, however, while they could handle other matters, as in BOUDOU SAUVE DES EAUX, they held onto their sexual component.