How many movies have Carmen G. Cervera and Vicente Coello collaborated on?

They have worked on 4 movies together! Their first movie together was Hay que educar a papá (1971) while their highest rated movie together was ¡Vaya par de gemelos! (1978). They have not worked together since Es peligroso casarse a los 60 (1981). They are most known for their comedy films together.