How many movies have Humberto Cornejo and Joaquín Prat collaborated on?

They have worked on 3 movies together! Their first movie together was Pero… ¡en qué país vivimos! (1967) while their highest rated movie together was Cuatro noches de boda (1969). They have not worked together since Cuatro noches de boda (1969). They are most known for their comedy films together.