How many movies have Shuichi Ito and Tadayoshi Yamamuro collaborated on?

They have worked on 6 movies together! Their first movie together was Dr. Slump: Arale's Surprise Bang (1999) while their highest rated movie together was Interstella 5555: The 5tory of the 5ecret 5tar 5ystem (2003). They have not worked together since One Piece Film: Z (2012). They are most known for their animation films together.

One Piece Film: Z (2012)

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Key Animation
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Key Animation

One Piece Film: Strong World (2009)

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Key Animation
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Key Animation

Yes! Precure 5 Go Go! Movie: Happy Birthday in the Land of Sweets (2008)

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Key Animation
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Key Animation

Yes! Precure 5: The Great Miracle Adventure in the Country of Mirrors (2007)

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Key Animation
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Key Animation

Interstella 5555: The 5tory of the 5ecret 5tar 5ystem (2003)

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Key Animation
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Key Animation

Dr. Slump: Arale's Surprise Bang (1999)

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Key Animation
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Key Animation