How many movies have Betty Chan Kwai-Wa and Joseph Lai San-Lun collaborated on?

They have worked on 48 movies together! Their first movie together was Ferocious to Ferocious (1973) while their highest rated movie together was American Commando 2 — Hunting Express (1988). They have not worked together since Space Thunder Kids (1991). They are most known for their action films together.

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