"So benightedly wrong-headed in every possible way that it is hard to know where to begin" - Mark Kermode, BBC Radio 5live
Good Andrea Riseborough and frocks. Bad everything else. As one listener put it: "Madonna's made a film about the abdication. I can't wait for Kylie's take on the Suez Crisis."
The film won a Golden Globe for the song Masterpiece, which has the opening line "if you were the Mona Lisa you would be hanging in the Louvre." That line is the most factually accurate thing in the film.
Mark said that had it not been for Andrea Riseborough's performance, he would have walked out. Al Murray wryly Tweeted, "get off the fence."