1932 film by Pierre Colombier

A black man is introduced at a high society party, where he proposes to a débutante. He's refused because of his colour. He goes to an inventor who has a potion that turns him white. Now she's interested in him, but after he slips her some of the elixir, she's black and he gets to refuse her.

The story is about a lieutenant, nicknamed "the Rooster of the Regiment", a married man, who just can't help running after any woman passing around, and one of his friend, who always has "good ideas" to give him a hand to come out of "ubuesque" situations.