How many movies have Duongjai Samkratthakit and Muanfun Uppatham collaborated on?

They have worked on 4 movies together! Their first movie together was Sassy Player (2009) while their highest rated movie together was Pee Nak 2 (2020). They have not worked together since Pee Nak 3 (2022). They are most known for their horror films together.