How many movies have Armando A. Herrera and Paquito Diaz collaborated on?

They have worked on 18 movies together! Their first movie together was Hari sa Barilan (1962) while their highest rated movie together was Dugo at Pag-ibig Sa Kapirasong Lupa (1975). They have not worked together since Ang Agila At Ang Falcon (1980). They are most known for their action films together.