How many movies have Julián Navarro and Ramón Fernández collaborated on?

They have worked on 8 movies together! Their first movie together was Como matar a papá... sin hacerle daño (1975) while their highest rated movie together was La insólita y gloriosa hazaña del cipote de Archidona (1979). They have not worked together since Aquí, el que no corre... vuela (1992). They are most known for their comedy films together.