Homonym: X rating (Adult)
The "X rating" is a classification used to indicate that a film contains adult content, making it unsuitable for viewers under a certain age. This rating often includes explicit sexual scenes, strong language, or graphic violence. It was first introduced in the United States in the late 1960s and has since evolved, with the MPAA (Motion Picture Association of America) creating more specific ratings like NC-17 to replace it.
While the "X rating" was once widely recognized, it has become less common in modern film ratings. Many filmmakers now avoid it due to its negative connotations, opting instead for ratings that provide clearer guidance to audiences. The term is still associated with adult films, which often use it to signify their content.