How many movies have Chonprakhan Janthareuang and Sinjai Plengpanich acted in together?

They have worked on 4 movies together! Their first movie together was The Case of Nuanchawee (1985) while their highest rated movie together was Whatever, I Don't Care (1986). They have not worked together since The Boys in the Band (1987). They are most known for their drama films together.