How many movies have Isamu Ichida and Masataka Iwao collaborated on?

They have worked on 18 movies together! Their first movie together was Dangerous Trade in Kobe (1973) while their highest rated movie together was The Yakuza Code Still Lives (1976). They have not worked together since Labyrinth Romanesque (1988). They are most known for their crime films together.

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Editor
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Hostage Negotiator Nakatani