How many movies have Choi Sung-Fai and Lin Gengxin collaborated on?

They have worked on 4 movies together! Their first movie together was Young Detective Dee: Rise of the Sea Dragon (2013) while their highest rated movie together was The Taking of Tiger Mountain (2014). They have not worked together since Detective Dee: The Four Heavenly Kings (2018). They are most known for their adventure films together.