How many movies have Choi Sung-Fai and Raymond Wong Ying-Wah collaborated on?

They have worked on 4 movies together! Their first movie together was The Second Woman (2012) while their highest rated movie together was Journey to the West: Conquering the Demons (2013). They have not worked together since Journey to the West: The Demons Strike Back (2017). They are most known for their fantasy films together.