Rising Sun Flag
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.