How many movies have Chatrichalerm Yukol and Sunait Chutintaranond collaborated on?

They have worked on 4 movies together! Their first movie together was The Legend of Suriyothai (2001) while their highest rated movie together was Pantai Norasingh (2015). They have not worked together since Pantai Norasingh (2015). They are most known for their action films together.