How many movies have Akira Oguro and Rei Sakuma collaborated on?

They have worked on 2 movies together! Their first movie together was Elementalors (1995) while their highest rated movie together was Crayon Shin-chan: Shrouded in Mystery! The Flowers of Tenkazu Academy (2021). They have not worked together since Crayon Shin-chan: Shrouded in Mystery! The Flowers of Tenkazu Academy (2021).