Movies That Were Completely Given The Wrong Rating

We've all seen PG-13 movies that really should have been rated R and vice versa, and it's clear that the Motion Picture Association of America isn't always consistent in their ratings. Sure, The Hunchback of Notre Dame was still a Disney animated film, but it was almost as dark as The Black Cauldron, which got a PG rating, while Hunchback still had a G.