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.

Unaccompanied children of any age may watch. 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 12 may see a '12A' film in a cinema unless accompanied by an adult. Responsibility for allowing under-12s to view lies with the accompanying or supervising adult.

No-one younger than 15 may see a '15' film in a cinema.

No-one younger that 18 may see an '18' film in a cinema.

To be confirmed - in some instanes films have not yet been certified