El principio (1973)

Mexico is in the midst of Revolution when the protagonist returns after studying in Paris to find his native town in Chihuahua occupied by Francisco Villa’s revolutionary forces. He visits his deserted home and remembers people and events from his adolescence that provide glimpses of pre-Revolutionary society under dictatorship: his uncle, the chief of police; his sister’s involvement with a liberal political association; bathing with the girls from a local brothel; a labor strike that ended in a massacre. Returning to the present he discovers that his father has been assassinated and, in the company of his father’s former servant, joins the revolutionary movement.

Unfortunately the movie El principio is not yet available on HBO Max.