How many movies have Berting Labra and Manny R. Buising collaborated on?

They have worked on 4 movies together! Their first movie together was Hindi pa Tapos ang Laban (1994) while their highest rated movie together was Ang Probinsyano (1996). They have not worked together since Ayos Na... Ang Kasunod (2000). They are most known for their action films together.