How many movies have Ng Keung and Walter Tso Tat-Wah collaborated on?

They have worked on 3 movies together! Their first movie together was The White Crane Hero (1956) while their highest rated movie together was Hound Murderer Case (1961). They have not worked together since Pledge of the Twin Blades (Part 1) (1962). They are most known for their action films together.