Comparative Analysis Between the British Rating System and the American Rating System

 A motion picture rating system is designated to classify films about suitability for audiences in terms of issues such as sex, violence, substance abuse, profanity, impudence, or other types of mature content.

 A particular issued rating can be called a certification, classification, certificate, or rating. Ratings typically carry age recommendations in an advisory or restrictive capacity and are often given instead of censorship. In some jurisdictions, the legal obligation of administering the rating may be imposed on movie theaters.

The British Board of Film Classification (BBFC) classifies films to be publicly exhibited in the United Kingdom, although statutory powers remain with local councils which can overrule any of the BBFC's decisions. If the BBFC refuses a classification this effectively amounts to a ban (although local councils retain the legal right to overturn it in the case of cinema exhibition). The BBFC's regulatory powers do not extend to the internet, so a film they have banned on physical media can still be made available via streaming media/video on demand.

The current BBFC system is:

Uc – Especially suitable for pre-school children. 

U (Universal) –  Suitable for all. A U-rated film should be suitable for audiences aged four years and over.

PG (Parental Guidance) –  General viewing, but some scenes may be unsuitable for young children.

12A –  Cinema release suitable for 12 years and over. 

12 – Video release suitable for 12 years and over.

15 –  Suitable only for 15 years and older. No one under 15 is allowed to see a 15-rated film at the cinema or buy/rent a 15-rated video.

18 –  Suitable only for adults.

 R18 (Restricted 18) –  Adult works for licensed premises only. 

In the United States of America, the Motion Picture Association of America (MPAA), through the Classification and Rating Administration (CARA), issues ratings for movies. The system was established in 1968 and is voluntary; an unrated film is often informally denoted by "NR" in newspapers and so forth.

G (General Audiences) – All Ages Admitted.

PG (Parental Guidance Suggested) – Some Material May Not Be Suitable For Children.

PG-13 (Parents Strongly Cautioned) – Some Material May Be Inappropriate For Children Under 13.

R (Restricted) – Under 17 Requires Accompanying Parent Or Adult Guardian.

NC-17 (Adults Only) – No One 17 and Under Admitted.