How many movies have Dante Rivero and Elena M. Patron collaborated on?

They have worked on 2 movies together! Their first movie together was Isinilang ang Anak ng Ibang Babae (1973) while their highest rated movie together was Oras-Oras, Araw-Araw (1989). They have not worked together since Oras-Oras, Araw-Araw (1989).