How many movies have Go Nagai and Yu Mizushima collaborated on?

They have worked on 5 movies together! Their first movie together was Devilman - Volume 1: The Birth (1987) while their highest rated movie together was I am Devilman, the Devil! (1991). They have not worked together since Cyborg 009 vs. Devilman (2015). They are most known for their animation films together.