Where was Les vécés étaient fermés de l'intérieur filmed?

1976 film by Patrice Leconte

Les vécés étaient fermés de l'intérieur (1976) was filmed in Marseille and Étretat, 2 places named in its French Wikipedia’s Production section, in 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.

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