How many movies have Mongkol Pongwachirin and Sommai Lertulan collaborated on?

They have worked on 3 movies together! Their first movie together was Sars Wars: Bangkok Zombie Crisis (2004) while their highest rated movie together was The Ghoul : Horror At The Howling Field​ (2020). They have not worked together since The Ghoul : Horror At The Howling Field​ (2020). They are most known for their horror films together.