Where was Justine filmed?
1969 film directed by George Cukor and Joseph Strick
Justine (1969) was filmed in Sidi Bou Said and Ennejma Ezzahra, 2 places named in its Wikipedia article's Production section, in Tunisia. 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 Production section
Wikipedia’s Production section names 2 places. Each links to the sentence that says so.

