This French version of the famous story should have been much more faithful to Alexandre Dumas' text... I'm hugely disappointed. Milady Winter could not be just a bad girl, that was too easy. She had to be Demon-possessed!!! I'm not kidding, she does sign a covenant with the Devil in this film!!! It happens in the woods just after Athos try to kill her... And the young boy D'Artagnan witnesses the whole mess... Years later D'Artagnan would be the only one who could beat her... Why the writers have invented it? Was it really necessary? Certainly the writers, or the producers, decided the original story was not good enough to attract audience. There are also some Matrix-like fighting scenes. This had already been done much better in Peter Hyams' The Musketeer (2001) which was not a serious film.
The rest of the film is not that bad. Good cast, good production values. But why they had to include the Devil in this???