Premise: O Pai Tirano (lit. "The Tyrant Father") is a 1941 Portuguese film comedy directed by António Lopes Ribeiro, starring Vasco Santana, Ribeirinho (Francisco Ribeiro), Leonor Maia, Teresa Gomes and Laura Alves. It is one of the best known comedies of the Golden Age of Portuguese cinema, still popular six decades after its release.
Hypothesis: O Pai Tirano was released in the year that immediately follows 1939.