How many movies have Hideko Takahashi and Keiji Fujiwara collaborated on?

They have worked on 1 movie together! Their first movie together was Crayon Shin-chan: The Hidden Treasure of the Buri Buri Kingdom (1994) and was their highest rated movie together. They have not worked together since Crayon Shin-chan: The Hidden Treasure of the Buri Buri Kingdom (1994).