How many movies have Hisashi Kagawa and Tatsufumi Itoh collaborated on?

They have worked on 4 movies together! Their first movie together was Ranma ½: The Movie — The Battle of Nekonron: The Fight to Break the Rules! (1991) while their highest rated movie together was Bodacious Space Pirates: Abyss of Hyperspace (2014). They have not worked together since Bodacious Space Pirates: Abyss of Hyperspace (2014). They are most known for their animation films together.