How many movies have Keiji Fujiwara and Tomohiro Nishiyama collaborated on?

They have worked on 4 movies together! Their first movie together was Crayon Shin-chan: Invoke a Super Storm! The Hero of Kinpoko (2008) while their highest rated movie together was Crayon Shin-chan: Super-Dimension! The Storm Called My Bride (2010). They have not worked together since Crayon Shin-chan: Fierceness That Invites Storm! Operation Golden Spy (2011). They are most known for their animation films together.