The document discusses the UK film age classification system. Films rated 12A can contain moderate violence and implied sexual violence if not frequent or detailed. Brief sex scenes and nudity are allowed. Films rated 15 can contain strong language, violence, sex, and nudity. Films rated 18 are restricted to adults and can contain very strong violence, language, sex, and discriminatory content. The BBFC classifies films through review by multiple examiners using classification guidelines.