How many movies have Akira Toriyama and Chiaki Imada collaborated on?

They have worked on 4 movies together! Their first movie together was Dr. Slump: Hoyoyo! Space Adventure (1982) while their highest rated movie together was Dragon Ball: Curse of the Blood Rubies (1986). They have not worked together since Dragon Ball: Mystical Adventure (1988). They are most known for their animation films together.