There already is and its called " Fullmetal Alchemist: and the
conqueror of Shambala "
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After you watch the episodes 1-51 you watch the Fullmetal
Alchemist Movie: The Conqueror of Shambala
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As far as I remember, Ed did not dye his hair in the movie
'Conqueror of Shambala'. His hair was the same colour as the day he
go transferred to the 'real world'.
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Sort of, the movie is a continuation of the series, so it pretty
much done after the movie.Yes.
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'Fullmetal Alchemist the Movie: Conqueror of Shamballa'