How many movies have Hiroyuki Horiuchi and Kazunobu Hoshi collaborated on?

They have worked on 8 movies together! Their first movie together was Tenchi Muyo! In Love (1996) while their highest rated movie together was Naruto Shippuden the Movie (2007). They have not worked together since Naruto Shippuden the Movie: The Will of Fire (2009). They are most known for their animation films together.

Naruto Shippuden the Movie: The Will of Fire (2009)

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Supervising Animation Director
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Key Animation

Naruto Shippuden the Movie: Bonds (2008)

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Animation Director
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Key Animation
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Key Animation

Naruto Shippuden the Movie (2007)

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Animation Director
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Key Animation
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Key Animation

Brave Story (2006)

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Animation
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Animation

Naruto the Movie: Legend of the Stone of Gelel (2005)

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Key Animation
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Key Animation

Naruto the Movie: Ninja Clash in the Land of Snow (2004)

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Key Animation
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Key Animation

Jin-Roh: The Wolf Brigade (1999)

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Key Animation
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Key Animation

Tenchi Muyo! In Love (1996)

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Supervising Animation Director
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Key Animation
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Character Designer
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Key Animation