Where was The Monte Carlo Story filmed?
1956 film by Samuel A. Taylor, Sam Taylor
The Monte Carlo Story (1956) was filmed in Monte Carlo, 1 place named in its Polish Wikipedia’s article, in Monaco. 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 Polish Wikipedia's article
Polish Wikipedia’s article names 1 place. Each links to the sentence that says so.
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