How many movies have Saeko Oofuji and Taichi Ishidate collaborated on?

They have worked on 6 movies together! Their first movie together was Munto 2: Beyond the Walls of Time (2005) while their highest rated movie together was The Disappearance of Haruhi Suzumiya (2010). They have not worked together since Sound! Euphonium the Movie – Welcome to the Kitauji High School Concert Band (2016). They are most known for their animation films together.