How many movies have Fernando Poe Jr. and R.R. Herrera acted in together?

They have worked on 3 movies together! Their first movie together was One Day Isang Araw (1988) and was their highest rated movie together. They have not worked together since Hindi Ka Na Sisikatan Ng Araw: Kapag Puno Na Ang Salop Part III (1990). They are most known for their action films together.