How many movies have José Luis Sáenz de Heredia and Ricardo Sáenz de Heredia collaborated on?

They have worked on 6 movies together! Their first movie together was ¡Se armó el belén! (1969) while their highest rated movie together was Los gallos de la madrugada (1971). They have not worked together since Solo ante el Streaking (1975). They are most known for their comedy films together.