Where was The Miracle of Father Malachia filmed?

1961 film by Bernhard Wicki

The Miracle of Father Malachia (1961) was filmed in Munich, Düsseldorf, Gelsenkirchen, Ruhr Region, Musiktheater im Revier, Dreischeibenhaus and 2 more places, 8 places named in its Wikipedia article, in Germany. 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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