How many movies have Chizuru Miyawaki and Kanami Sekiguchi collaborated on?

They have worked on 3 movies together! Their first movie together was Fullmetal Alchemist the Movie: Conqueror of Shamballa (2005) while their highest rated movie together was Summer Days with Coo (2007). They have not worked together since Summer Days with Coo (2007). They are most known for their animation films together.

Summer Days with Coo (2007)

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Key Animation
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Key Animation

Ghost in the Shell: Stand Alone Complex - Solid State Society (2006)

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Key Animation
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Animation Director
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Key Animation

Fullmetal Alchemist the Movie: Conqueror of Shamballa (2005)

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Key Animation
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Animation Director
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Key Animation