How many movies have Shigeki Iwasaki and Tetsuro Kaku collaborated on?

They have worked on 2 movies together! Their first movie together was Zorori the Naughty Hero: Super Adventure! (2012) and was their highest rated movie together. They have not worked together since Seven Days War (2019).

Seven Days War (2019)

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Key Animation
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Key Animation

Zorori the Naughty Hero: Super Adventure! (2012)

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Key Animation
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Animation Director