To me, it felt like everyone was enjoying themselves in that version of the Three Musketeers, embracing a certain steampunk campness, Orlando in particular seemed to just going full-tilt chew the scenery, twirl the moustache villainy. That combined with some quite entertaining fight choreography was worth the watch.
But it sounds like you missed the end sequence which kind of left the film hanging on a potential cliffhanger.
On other matters that might be mildly interesting to a few folks:
https://filmschoolrejects.com/dances-with-wolves-native-lens/
Or "What do John J. Dunbar and every sad white guy in romantic dramedies have in common?"