BBFC

The BBFC (British Board of Film Classification) is an independent, non-governmental body which has classified cinema films. Issues are raised such as discrimination, drugs, horror, nudity, sex, sexual violence, theme and violence when making decisions. They also consider how it makes the audience feel and act on audience behaviour.

"It is impossible to predict what might upset any particular child. But a ‘U’ film should be suitable for audiences aged four years and over. ‘U’ films should be set within a positive moral framework and should offer reassuring counterbalances to any violence, threat or horror." - http://www.bbfc.co.uk/

There is a wide audience but some scenes may be unsuitable for young children. A ‘PG’ film should not disturb a child aged around eight or older. However, parents are advised to consider whether the content may upset younger or more sensitive children.

No-one younger than 15 may see a ‘15’ film in a cinema. No-one younger than 15 may rent or buy a ‘15’ rated video work. A '15' rating film will include themes such as strong language, suitable violence (if too explicit; the film should be categorised as an '18') and topics that deal with descrimination.

No-one younger than 18 may see an ‘18’ film in a cinema. No-one younger than 18 may rent or buy an ‘18’ rated video work. An '18' rating movie will be very explicit; therefore it's only suitable for adults. Abusive themes will be explored and their maybe strong sexual content with heavy violence.

Exactly the same criteria are used to classify works at ‘12A’ and ‘12’.  A '12' and '12A' is categorised when material is suitable, in general, only for those aged 12 and over. Works classified at these categories may upset children under 12 or contain material which many parents will find unsuitable for them.
The ‘12A’ category exists only for cinema films. No one younger than 12 may see a ‘12A’ film in a cinema unless accompanied by an adult, and films classified ‘12A’ are not recommended for a child below 12. An adult may take a younger child if, in their judgement, the film is suitable for that particular child. In such circumstances, responsibility for allowing a child under 12 to view lies with the accompanying adult.
The ‘12’ category exists only for video works. No one younger than 12 may rent or buy a ‘12’ rated video work.