The document discusses the British board of film classification system and the ratings they use: U for all ages but aimed at young viewers with mild violence or language; PG which means parental guidance is needed as films may contain mild language or humor; 12A means children under 12 must be accompanied by an adult as some scenes contain mild swearing or violence; 15 rated films can only be seen by those 15 or older and may contain strong violence, language or nudity; and 18 rated films are strictly for adults over 18 and contain strong language, violence and sexual scenes.