How many movies have Iemasa Kayumi and Kappei Yamaguchi acted in together?

They have worked on 5 movies together! Their first movie together was Inferious Interplanetary War Chronicle - Condition Green (1991) while their highest rated movie together was Lupin the Third vs. Detective Conan: The Movie (2013). They have not worked together since Detective Conan: Dimensional Sniper (2014). They are most known for their animation films together.