How many movies have Kiyoshi Kawakubo and Osamu Tezuka collaborated on?

They have worked on 3 movies together! Their first movie together was Alakazam the Great! (1960) while their highest rated movie together was The Tale of Osamu Tezuka: I'm Son-Goku (1989). They have not worked together since The Tale of Osamu Tezuka: I'm Son-Goku (1989). They are most known for their animation films together.