Primarily in the naked-drug-addicted-girl-orgy towards the end...
In the NC-17 version you see a big black double-dildo they suck on and fuck each other with, in the rater R version you never antyhing but the parts not jammed up thier cunt...
That's the main difference, double black dildo head or no double black dildo head...
And some other slight cosmetic changes...
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"Rock and roll adolescents storm into the streets of all nations. They rush into the Louvre and throw acid in the Mona Lisa's face. They open zoo's, insane asslyums, prisons, burst water mains with air hammers, Chop the floor out of passanger plane lavatories, shoot out lighthouses, turn sewers into the water supply, administer injections with bicycle pumps. They shit on the floor of the United Nations and wipe thier ass with the treaties, pacts, alliances."