How many movies have Kentaro Takahashi and Mitsunori Hattori collaborated on?

They have worked on 7 movies together! Their first movie together was Kaiki Senyaichiya Monogatari: Sen no Maki (1991) while their highest rated movie together was Siren the Ghost Story Again (1994). They have not worked together since Amazoness in White (1995). They are most known for their horror films together.