The document summarizes the British Board of Film Classification (BBFC) movie rating system. U rated films are suitable for all ages 4 and over as long as negative behavior is balanced with positive messages and a good moral framework. PG rated films are generally suitable for all but parents should determine suitability for their children. Films rated 12A allow children under 12 to view with an accompanying adult, while 12 rated films require the viewer to be at least 12 years old. 15 and 18 rated films are restricted to viewers at least 15 and 18 years old respectively. R18 rated films containing strong explicit sexual content can only be shown in licensed cinemas or sex shops to adults over 18.