How many movies have Kiichi Nakai and Shinosuke Tatekawa acted in together?

They have worked on 2 movies together! Their first movie together was 劇場の灯を消すな！PARCO劇場編 (2020) while their highest rated movie together was Dreaming of the Meridian Arc (2022). They have not worked together since Dreaming of the Meridian Arc (2022).