How many movies have Hiroshi Osaka and Yasuhiro Irie collaborated on?

They have worked on 5 movies together! Their first movie together was Macross Plus: The Movie (1995) while their highest rated movie together was Fullmetal Alchemist the Movie: Conqueror of Shamballa (2005). They have not worked together since Fullmetal Alchemist the Movie: Conqueror of Shamballa (2005). They are most known for their animation films together.