The document discusses the UK film classification system used to protect children from unsuitable content. It outlines the various age ratings from U to R18, explaining what content each rating allows and the intended audience. The ratings are used on films and DVDs to inform consumers, especially parents, about a film's content so they can make an informed choice about what is appropriate for their children to view. The British Board of Film Classification examines each film and assigns an age rating prior to its release.