How many movies have Miliyah Kato and Shintaro Ehara collaborated on?

They have worked on 4 movies together! Their first movie together was Diamond Princess Tour 2007 (2007) while their highest rated movie together was "ETERNAL HEAVEN" TOUR 2010-2011 (2011). They have not worked together since "ETERNAL HEAVEN" TOUR 2010-2011 (2011). They are most known for their music films together.