How many movies have Houko Kuwashima and Naoki Imamura acted in together?

They have worked on 3 movies together! Their first movie together was Blue Gender: The Warrior (2002) while their highest rated movie together was Metal Gear Solid 3: Existence (2005). They have not worked together since Metal Gear Solid: Digital Graphic Novel (2008). They are most known for their animation films together.