Here are some of his most notable works:
Films:
* The Good, the Bad and the Ugly (1966): He co-wrote the screenplay for this iconic Western directed by Sergio Leone, though his name was not credited in the film.
* Viridiana (1961): This controversial film directed by Luis Buñuel, about a young nun who inherits a fortune and uses it to help the poor, caused a stir in its time.
* The Angel Exterminating (1962): Another collaboration with Buñuel, this surreal black comedy features a group of wealthy dinner guests who are inexplicably locked in a mansion and left to their own devices.
* The Discreet Charm of the Bourgeoisie (1972): A surreal masterpiece directed by Buñuel, which features a group of well-to-do friends who are constantly interrupted in their attempts to have a meal together.
* The Spirit of the Beehive (1973): This film by Victor Erice explores the power of cinema and the impact it can have on a child's imagination.
* The Adventures of Don Juan (1973): Azcona co-wrote the screenplay for this film, which starred Omar Sharif as the legendary seducer.
* Clowning Around (1985): A comedy film directed by Fernando Fernán Gómez, featuring a memorable performance by Fernando Fernán Gómez himself.
* Women on the Verge of a Nervous Breakdown (1988): This acclaimed film directed by Pedro Almodóvar is a satirical and darkly humorous look at female relationships and the madness of love.
Television:
* El pícaro (1974): A TV series based on the classic picaresque novel "Lazarillo de Tormes," featuring Alfredo Landa in the lead role.
This is just a small selection of Azcona's extensive work. He was a prolific and influential screenwriter, and his films and TV shows continue to be enjoyed by audiences around the world.