An X rating is a film rating that indicates that the film contains content that is considered to be suitable only for adults. Films with an X rating may have scenes of graphic violence or explicit sex that may be disturbing or offensive to some viewers. The X rating is used in different ways by different countries, and it may have legal or commercial implications for the distribution and exhibition of such films. For example, some countries may ban or restrict the sale or rental of X-rated films, while others may allow them only in specific theaters or with special taxes. Some countries may also have different criteria or definitions for what constitutes an X-rated film, and some may consider the artistic merit of the film as a factor in classification. The X rating has been replaced or renamed by other ratings in some countries over time.