 Cinemas must have a liquor license to serve alcohol.The Vue Cinema and CGV Cinema chain is a good example of a large-scale offering of such a service, called "Gold Class" and similarly, ODEON, Britain's largest cinema chain, and 21 Cineplex, Indonesia's largest cinema chain, have gallery areas in some of their bigger cinemas where there is a separate foyer area with a bar and unlimited snacks.Admission to a movie may also be restricted by a motion picture rating system, typically due to depictions of sex, nudity or graphic violence.