There are a number of film rating systems worldwide:
- Australia rates films through the Classification Board of the Australian Office of Film and Literature Classification
- Canada has seven different rating systems for its many provinces and territories, with the Canadian Motion Picture Distributors Association offering yet another one.
- New Zealand uses a system devised by the Office of Film and Literature Classification.
- The United Kingdom uses a system devised by the British Board of Film Classification.
- The United States uses the MPAA film rating system, instituted by the Motion Picture Association of America.