How many movies have Keiichiro Watanabe and Tomokazu Seki collaborated on?

They have worked on 2 movies together! Their first movie together was Doraemon: Nobita's New Dinosaur (2020) while their highest rated movie together was Jujutsu Kaisen 0 (2021). They have not worked together since Jujutsu Kaisen 0 (2021).