How many movies have Emilio Ferrer and José Ruiz de Azagra collaborated on?

They have worked on 4 movies together! Their first movie together was El difunto es un vivo (1941) while their highest rated movie together was Los ladrones somos gente honrada (1942). They have not worked together since La boda de Quinita Flores (1943). They are most known for their comedy films together.