How many movies have Keiichi Hara and Masahiro Ando collaborated on?

They have worked on 6 movies together! Their first movie together was Crayon Shin-chan: The Hidden Treasure of the Buri Buri Kingdom (1994) while their highest rated movie together was Crayon Shin-chan: Great Adventure In Henderland (1996). They have not worked together since Crayon Shin-chan: Explosion! The Hot Spring's Feel Good Final Battle (1999). They are most known for their animation films together.