How many movies have Chikashi Kubota and Hideki Ito collaborated on?

They have worked on 3 movies together! Their first movie together was Digimon Tamers: Battle of Adventurers (2001) while their highest rated movie together was The Girl Who Leapt Through Time (2006). They have not worked together since A Letter to Momo (2012). They are most known for their animation films together.