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

The Brief and Scandalous History of the X Rating

RetroNewsNow on X: 🎬On November 1, 1968, the Motion Picture Association of America's film rating system was officially introduced with the ratings G, M, R and X / X

File:X rating symbol.png - Wikimedia Commons

Movie Poster of the Week: Rated X at the Quad on Notebook

8 Provocative Facts About the X Film Rating

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

Nymphomaniac librarian in 'The Wicker Man' – REEL LIBRARIANS

Canyon Rating System - Road Trip Ryan

Midnight Cowboy' Rode to Success Despite Its X Rating – The Hollywood Reporter

The first American film to receive an X rating