Dangerous Liaisons filmed at Château de Neuville, Gambais. The home of Valmont is this 16th-century chateau near Gambais, which can be hired for weddings. On screen it's Valmont's home.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
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Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Gambais and it tells you what was shot around you, how to get there, and whether you can actually go in.
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