How many movies have Loreto Isleta and Mary Walter collaborated on?

They have worked on 4 movies together! Their first movie together was Lumuha Pati mga Anghel (1971) while their highest rated movie together was Dugo at Pag-ibig Sa Kapirasong Lupa (1975). They have not worked together since Maligno (1977). They are most known for their drama films together.