Where was Whorrey Potter and the Sorcerer's Balls filmed?

2010 film

Whorrey Potter and the Sorcerer's Balls (2010) was filmed in London, Stockholm and Budapest, 3 places named in its Wikipedia article's Production section, in the United Kingdom, Hungary, Sweden. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

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