How many movies have Akira Toriyama and Minoru Maeda collaborated on?

They have worked on 7 movies together! Their first movie together was Dr. Slump: Hoyoyo! Space Adventure (1982) while their highest rated movie together was Dragon Ball Z: The History of Trunks (1993). They have not worked together since Dragon Ball Z: The History of Trunks (1993). They are most known for their animation films together.