How many movies have Eiko Masuyama and Koichi Kitamura acted in together?

They have worked on 4 movies together! Their first movie together was Lupin the Third: Napoleon's Dictionary (1991) while their highest rated movie together was Lupin the Third: Operation: Return the Treasure (2003). They have not worked together since Lupin the Third: Operation: Return the Treasure (2003). They are most known for their crime films together.