The document outlines various UK film certificates and their meanings: Universal films are generally suitable for ages 4 and up but may contain some scenes parents find unsuitable. PG means parental guidance is advised as scenes may be unsuitable for young children. 12A means children under 12 need an adult for scenes parents may find unsuitable, while 12, 15, and 18 ratings mean increasing restrictions based on the intensity of violence, sexual, or other adult content in the film. R18 films contain strong adult or fetish material and can only be shown in licensed venues.