Where was Squirm filmed?
1976 film by Jeff Lieberman
Squirm (1976) was filmed in Port Wentworth, 1 place named in its Wikipedia article, in the United States. Wikidata itself records the shoot only as Georgia. Each place says where its claim comes from.
Places per Wikipedia's article
The Wikipedia article names 1 place. Each links to the sentence that says so.
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Towns & cities
Port Wentworth
United States
City in Chatham County, Georgia, USA
“Millions of worms were used over the five-week filming in Port Wentworth, Georgia; worms were brought in from Maine to augment local supplies.” Wikipedia
Recorded only at country level
Also filmed in Georgia, but the exact places are not known, so they are not on the map.
Filming locations that are mapped there: United States