Where does this come from, and can I check it?

Jack Valenti introduced the G, M, R and X categories to guide parents. The figure is taken from Motion Picture Association, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a movies & tv fact?

Yes. It sits on the Movies & TV shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

A voluntary ratings system replaced the Code in 1968

Jack Valenti introduced the G, M, R and X categories to guide parents With the Production Code collapsing under films that broke its rules, the industry adopted a voluntary rating system in November 1968 under Jack Valenti, the new head of the Motion Picture Association. Ratings were meant to inform parents rather than censor, and they allowed adult films to be released openly. The categories have been revised several times since. It sits in Mondo's movies & tv collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Motion Picture Association

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Movies & Television trivia American History trivia

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The NC-17 rating replaced X in 1990The change aimed to separate serious adult films from pornography The bone to satellite cut spans millenniaKubrick cut from a thrown bone to an orbiting satellite in one frame The British film censor dates from 1912Local councils still hold the legal power over cinema admissions Showing drug dealing sympathetically was off limitsThe Code required crime to be punished and never shown as attractive The Production Code policed Hollywood for three decadesFrom 1934 studios needed a seal of approval before a film could be released A Hays Office seal decided what cinemas could bookFilms without approval struggled to find screens in the 1930s

Tags: ratings, 1968, censorship

A voluntary ratings system replaced the Code in 1968: the short answers

Where does this come from, and can I check it?: Jack Valenti introduced the G, M, R and X categories to guide parents. The figure is taken from Motion Picture Association, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a movies & tv fact?: Yes. It sits on the Movies & TV shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.