How many movies have Masashi Kojima and Takahiro Sakurai collaborated on?

They have worked on 2 movies together! Their first movie together was Initial D: Third Stage (2001) while their highest rated movie together was That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (2022). They have not worked together since That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (2022).