How many movies have Motonobu Kiyoku and Teiichi Saitô collaborated on?

They have worked on 3 movies together! Their first movie together was Godzilla 2000: Millennium (1999) while their highest rated movie together was Godzilla: Final Wars (2004). They have not worked together since Godzilla: Final Wars (2004). They are most known for their science fiction films together.