Back in March, the Motion Picture Association of America re-launched its film-rating website, filmratings.com. While this may be old news to some, I just learned about it from a post on BoingBoing which makes fun of the rationales given for the ratings, which are available on the new website. Example: The movie "3 Ninjas Knuckle Up" was "rated PG-13 for non-stop ninja action."