Where was The Heart Is Deceitful Above All Things filmed?
2004 film by Asia Argento
The Heart Is Deceitful Above All Things (2004) was filmed in Knoxville, 1 place named in its German Wikipedia’s Hintergründe section, in 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.
Places per German Wikipedia's Hintergründe section
German Wikipedia’s Hintergründe section names 1 place. Each links to the sentence that says so.