Where was Night Flight from Moscow filmed?
1973 film by Henri Verneuil
Night Flight from Moscow (1973) was filmed in LMU Munich, Lacroix-Saint-Ouen and University Library of LMU Munich, 3 places named in its Wikipedia article, in Germany, France. 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 3 places. Each links to the sentence that says so.

