The document outlines the classification guidelines for films and videos in the UK. It states that only those 18 and over can view 18-rated films in cinemas or rent 18-rated videos. It also lists content that is unacceptable for classification like illegal or obscene material, or content that promotes harmful or abusive behavior. The document discusses interventions like cuts or warnings that may be required to achieve a certain classification, as well as circumstances where works could be rejected outright.