Ostatnia brygada (literally, "last brigade"; alternative title: Prawo do szczęścia) is a 1938 Polish film from a novel of the same name [pl] by Tadeusz Dołęga-Mostowicz.
It was directed by Michał Waszyński, and starred Zbigniew Sawan, Maria Gorczyńska, Elżbieta Barszczewska, Lidia Wysocka.
Andrzej Dowmunt, who has acquired a large fortune in Africa, returns to Poland to invest his capital in his homeland.
To his surprise, he notices that the Polish elites do not care about the fate of the reborn state and its economic situation, but only about their own private interests.
Andrzej becomes entangled in an unfortunate affair with Lena, the wife of a wealthy banker, who turns out to be an agent of Soviet intelligence.