Genroku chûshingura or The 47 Ronin is for sure not a movie for those who just want some samurai and ninja action, a Eastern swashbuckler so to say. It's a rather slow evolving drama that draws us back to those times, its society, its code of honor. No doubt, if you like such kind of movies, you will enjoy this long ride, I put this on my plate and watched it in two tours - the running time of the version I watched is around 220 minutes. Production is fine, the acting rock solid, the story too. But be warned - it's very different from the movie (2013) starring Keanu Reeves, which is far more focused on action, but if you want to drown yourself in some epic drama set in the time of the samurais, this one will provide plenty.
Review of The 47 Ronin
