How many movies have Kosaka Akiko and Naoko Takeuchi collaborated on?

They have worked on 2 movies together! Their first movie together was Sailor Moon - 10th Anniversary Festival - Sanctuary of Love (2002) while their highest rated movie together was Pretty Guardian Sailor Moon Cosmos The Movie Part 2 (2023). They have not worked together since Pretty Guardian Sailor Moon Cosmos The Movie Part 2 (2023).