MPAA X18 Rated Logo by JamesMoulton1988 on DeviantArt

CLOCKWORK ORANGE, Stanley Kubrick, X Rated Ratings Box Original Movie Theater Poster - Original Vintage Movie Posters

Rated X | Sticker

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What is the difference between the movie ratings R (17+), X (19+) and XXX (21+) other than age, and what do they mean? - Quora