How many movies have Lee Heung-Kam and Lo Yu-Kei collaborated on?

They have worked on 5 movies together! Their first movie together was Wong Fei-Hung and the Lantern Festival Disturbance (1956) while their highest rated movie together was The Haunting Shadow (1962). They have not worked together since Family Doctrine (Part 2) - A Setting Sun on the Green Hill (1965).