How many movies have Dejay Choi and Zhang Zheng-Zhong acted in together?

They have worked on 3 movies together! Their first movie together was McDull: The Pork of Music (2012) while their highest rated movie together was McDull: Me & My Mum (2014). They have not worked together since McDull: Rise of the Rice Cooker (2016). They are most known for their comedy films together.