How many movies have Takashi Saito and Yôhei Fukuda collaborated on?

They have worked on 1 movie together! Their first movie together was Mysterious! Unbelievable: Shock! Approaching the Mystery of the Cursed Sealed Photographs that Kill People!! (2013) and was their highest rated movie together. They have not worked together since Mysterious! Unbelievable: Shock! Approaching the Mystery of the Cursed Sealed Photographs that Kill People!! (2013).