How many movies have Lani Mercado and Rey "PJ" Abellana acted in together?

They have worked on 4 movies together! Their first movie together was Sa Ngalan ng Anak (1984) while their highest rated movie together was Bukas Luluhod Ang Mga Tala (1984). They have not worked together since The Graduates (1986). They are most known for their drama films together.