Where was Graveyard Shift filmed?
1990 film directed by Ralph S. Singleton
Graveyard Shift (1990) was filmed in Bangor and Harmony, 2 places named in its Wikipedia article's Production section, in the United States. Wikidata itself records the shoot only as Maine. 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.
Recorded only at country level
Also filmed in Maine, but the exact places are not known, so they are not on the map.
Filming locations that are mapped there: United States