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 its genre, the comédia à portuguesa of the Golden Age of Portuguese cinema, still popular eight decades after its release.

Plot

Francisco Mega (Ribeirinho), a clerk at the then leading department stores of Lisbon, "Grandes Armazéns do Grandella", is in love with Tatão (Leonor Maia), who works in front at "Perfumaria da Moda". Tatão, however, is a cinephile who largely ignores him, whereas Francisco is also an amateur theatre player; so his amateur theatre company, the Grandellinhas, uses its rehearsals of the play O Pai Tirano (ou O Último dos Almeidas) to present Francisco as a son who split from his tyrant father for love, and woo Tatão.