Mini-Review: Nice concept, but bad done. The film is messy and confusing. A lot of things happen, and you can't really tell how much time passes from the scene before. Musicians are suddenly rich in five minutes and in the next five minutes they are in problems again. Anyway, Howling Wolf is amazing in the film.
Mini-Review: Unless you like Frank Miller's style and stupid and silly humor (and I mean really stupid and random, not just bad humor), you won't like this at all.
Mini-Review: You have to love both the main characters in order to enjoy this movie.