How many movies have Goyoshio Ishizaki and Katsuaki Yamamoto collaborated on?

They have worked on 3 movies together! Their first movie together was Curse Spirit Legend Vol.1: The Town Inhabited by the Dead (2004) and was their highest rated movie together. They have not worked together since Curse Spirit Legend Vol.3: The Town Where the Dead Revive (2004). They are most known for their horror films together.