How many movies have Hiroshi Okamoto and Takeo Nakahara collaborated on?

They have worked on 2 movies together! Their first movie together was 奄美殺人珊瑚礁 (1997) while their highest rated movie together was Godzilla: Tokyo S.O.S. (2003). They have not worked together since Godzilla: Tokyo S.O.S. (2003).