The document discusses various film classification ratings in the UK. U classification means films are suitable for all ages 4 and over and can contain mild language or violence. PG allows more violent or scary content but not gory details. 12A and 12 ratings mean children under 12 must be accompanied by an adult and films may contain stronger language, sexual references or violence. The 15 rating does not restrict themes and can show strong violence, language, sex or drug use. The 18 rating restricts viewing to adults only and has no limits on content other than illegality.