Red Sparrow filmed at Festetics Palace, Dég. The outside of the state training school is this palace in Dég, which opens to visitors in the summer months. On screen it's State School Four.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Dég and it tells you what was shot around you, how to get there, and whether you can actually go in.
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