File:MPAA X RATING (block).svg - Wikipedia

X 18+ - Wikidata

File:X rating symbol.png - Wikimedia Commons

What Happened to the X Rating? AfterPiece! Zine — AfterPiece! Zine

X (2022) - IMDb

MPAA Rating Bumper Rated X Remake (1968-1970) by TheAnthonyCorp on DeviantArt

X RATING FOR 'ANGEL HEART' IS UPHELD - The New York Times

Nymphomaniac librarian in 'The Wicker Man' – REEL LIBRARIANS

MOVIE 'SCARFACE' RECEIVES X RATING - The New York Times

DESADE RATED X Film By Peter Coukis : Peter Coukis : Free Download, Borrow, and Streaming : Internet Archive

On this Day in Movie History, November 1, 1968: MPAA Film Rating System Becomes Effective – Michigan Movie Magazine