Where was Better Days filmed?
2019 film by Derek Tsang
Better Days (2019) was filmed in Chongqing, 1 place named in its Wikipedia article's Production section, in China. 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 Wikipedia's Production section
Wikipedia’s Production section names 1 place. Each links to the sentence that says so.
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Towns & cities
Chongqing
China
Municipality of China
“Most of the film was shot on location in Chongqing.” Wikipedia