How Tasty Was My Little Frenchman(1971)

Brazil, 1594. The Tupinambás natives are friends of the French and their enemies are the Tupiniquins, friends of the Portuguese. A Frenchman is captured by the Tupinambás, and in spite of his trial to convince them that he is French, they believe he is Portuguese. The Frenchman becomes their slave, and maritally lives with Seboipepe.