How many movies have Keiichi Wada and Naruhisa Arakawa collaborated on?

They have worked on 2 movies together! Their first movie together was Gokaiger Goseiger Super Sentai 199 Hero Great Battle (2011) while their highest rated movie together was Super Sentai Strongest Battle Director's Cut (2019). They have not worked together since Super Sentai Strongest Battle Director's Cut (2019).