The NC-17 Rating is a classification assigned by the Motion Picture Association (MPA) to films that contain explicit sexual content. This rating indicates that the film is intended for adult audiences only, and no one under 17 years old is allowed to view it in theaters. Unlike the R Rating, which permits viewers under 17 to attend with an adult, the NC-17 Rating restricts access entirely. This rating can impact a film's distribution and marketing, as many theaters and retailers may choose not to show or sell NC-17 films due to their adult content.