How many movies have Akiko Yajima and Tomomi Ishii collaborated on?

They have worked on 6 movies together! Their first movie together was Crayon Shin-chan: Great Adventure In Henderland (1996) while their highest rated movie together was Crayon Shin-chan: The Legend Called Buri Buri 3 Minutes Charge (2005). They have not worked together since Crayon Shin-chan: Invoke a Storm! The Singing Buttocks Bomb (2007). They are most known for their comedy films together.