Where was Charlatan filmed?
2020 film directed by Agnieszka Holland
Charlatan (2020) was filmed in Mladá Boleslav and Prison in Mladá Boleslav, 2 places named in its Wikipedia article, in the Czech Republic. 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 article
The Wikipedia article names 2 places. Each links to the sentence that says so.

