Reading over the comments for this film, I'm surprised how many people disliked it. They harp because there are no accents, different accents, or partial accents. They complain about wooden acting. I'm wondering of somehow the world is cross-wired, since the film I saw had very fine acting, gorgeous costuming, and excellent period dialogue. I was pleased scriptwriters didn't dive into the vulgar, although some scenes (most particularly the actual bodice-ripping) did push the mark.
As a period film fan, I found this story not only exquisite but also fascinating. The plot is intelligent enough you don't have to check your brain at the door, unlike many other dramas. True, it's not completely historically accurate and they've made Jeanne la Motte much more likable and moral than she was, but that's the point of a MOVIE. It's NOT supposed to be reality, just a loose translation of a historical event. I found it worthwhile and watched it three times in a week... a rarity among films.
If you're not too snobby to put on your thinking cap, give it a go.