1949 French film by Jean Loubignac

Arsène Lupin decides to run a detective agency in addition to being a gentleman thief. As a detective he happens to cooperate with police in order to unveil the criminal activities of a villain. When he succeeds the villain returns the favour. The unmasked Arsène Lupin manages to escape with the villain's gangster moll as his new companion.

Michel Levasseur is a joyous reveler who does not care about the next day. So much so that one day a bailiff bursts into his Paris apartment and seizes his furniture on behalf of Raymond Sauvaget, his landlord, a rich food industrialist. But far from resenting Sauvaget's act of hostility, Michel ... becomes his friend. Now Raymond, although prosperous, does not know how to handle women. That is why he asks Michel, a regular Casanova, to give him lessons in seduction.

1938 French film by Fjodor Alexandrowitsch Ozep

Pierre Fresnay plays the title character in Le Defroque (The Defrocked One). Cast out by his church, former priest Maurice (Fresnay) delights in mocking the traditions and credos of Catholicism. Even so, young Gerard (Pierre Trabaud) becomes convinced that Maurice has never truly lost his calling. Becoming a priest himself, Gerard devotes his life to bringing Maurice back into the fold. Things don't turn out quite as Gerard hopes, however; he has not reckoned with the possibility that Maurice may have been driven into insanity by his raging self-hatred.