<P> Big Hero 6 premiered on October 23, 2014 as the opening film at the Tokyo International Film Festival . The world premiere of Big Hero 6 in 3D took place at the Abu Dhabi Film Festival on October 31, 2014 . It was theatrically released in the United States and Canada on November 7, 2014 with limited IMAX international showings . Theatrically, the film was accompanied by the Walt Disney Animation Studios short, Feast . </P> <P> For the South Korean release of the film, it was retitled Big Hero, to avoid the impression of being a sequel, and edited to remove indications of the characters' Japanese origin . This is owing to the tense relations between Korea and Japan . For instance, the protagonist's name, Hiro Hamada, was changed to "Hero Armada," and Japanese - language signage onscreen was changed to English . Nonetheless, the film caused some online controversy in South Korea, because of small images resembling the Rising Sun Flag in the protagonist's room . </P> <P> The film was released in China on February 28, 2015 . </P> <P> Big Hero 6 was released in the United States by Walt Disney Studios Home Entertainment on Blu - ray and DVD on February 24, 2015 . Writer Steven T. Seagle, who co-created the comic book Big Hero 6, criticized the Blu - ray featurette documenting the origins of the group, for not mentioning him or co-creator Duncan Rouleau . Seagle also criticized the book Art of Big Hero 6 for the same omission . </P>

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