Where was A Brighter Summer Day filmed?
1991 film directed by Edward Yang
A Brighter Summer Day (1991) was filmed in Jiufen, Jinguashi and Railway Department of the Office of the Governor-General of Taiwan, 3 places named in its Chinese Wikipedia’s 取景 section, in Taiwan. 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.
Places per Chinese Wikipedia's 取景 section
Chinese Wikipedia’s 取景 section names 3 places. Each links to the sentence that says so.

