Nymphomaniac librarian in 'The Wicker Man' – REEL LIBRARIANS

File:X rating symbol.png - Wikimedia Commons

cinema history - Why would a movie that appears pornographic via it's rating (X) receive an Academy Award? - Movies & TV Stack Exchange

A Brief History of the X Rating

RetroNewsNow on X: 🎬On September 26, 1990, the Motion Picture Association of America replaced the 'X' rating with NC-17 (No Children Under 17 Admitted) / X

Rated X | Sticker

IPX Waterproof Rating Guide – Hypergear US

FSM Board: Films That Received an X Rating in the U.S.

The first animated feature to be given an X rating

DREAMS ARE WHAT LE CINEMA IS FOR: LAST SUMMER 1969

IPX Rating System: What It Means And Why You Should Know