How many movies have Carlos Arjona and Raúl Martínez Solares collaborated on?

They have worked on 8 movies together! Their first movie together was The Invasion of the Vampires (1963) while their highest rated movie together was Los dos rivales (1966). They have not worked together since Santo in the Vengeance of the Mummy (1971). They are most known for their horror films together.