Where was The Opening of Misty Beethoven filmed?

1976 pornographic film directed by Radley Metzger

The Opening of Misty Beethoven (1976) was filmed in Paris, Rome and New York City, 3 places named in its Wikipedia article, in France, Italy, the United States. 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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