How many movies have Arashi and Kazunari Ninomiya collaborated on?

They have worked on 7 movies together! Their first movie together was Pika*nchi Life Is Hard Dakedo Happy (2002) while their highest rated movie together was The Last Promise (2010). They have not worked together since Pikanchi Half: Life is Hard Tabun Happy (2014). They are most known for their drama films together.