How many movies have Chatchai Plengpanich and Siriwimol Charoenpura acted in together?

They have worked on 2 movies together! Their first movie together was เปิดโลกมหาสนุก (1985) while their highest rated movie together was The Legend of Suriyothai (2001). They have not worked together since The Legend of Suriyothai (2001).