This Film Is Not Yet Rated (2006)
David L. Robb: The military and the film studios have colluded for more than 50 years. Anytime filmmakers want military assets - ships or tanks or planes - they have to give the Pentagon five copies of their script. And, if there's anything in the script that's negative, the Pentagon wants them to take it out. And so they negotiate, and take out any war crimes or foul language, or drinking. Anything that would make the military look bad. And than, after the agreement is made, the military sends a minder onto the set, when the film is being shot, to make sure it's shot just the way they agreed. And then, once the film is completed, it has to be shown to the Pentagon, admirals and generals, before it's shown to the public. Dozens of films have not been made because they couldn't get military assistance. So, people have no idea what they're not seeing.
John Waters: I also heard on A Dirty Shame - and I have no proof of this - that there were doctors involved... and that some of the kinkier terms, like felching and stuff, that they explained to the MPAA what felching meant. Now, I would like to have heard that because felching, no one has ever done felching. Felching is when you f*** someone and suck your own c** out of their a**hole. Well, I know a lot of perverts and I don't know anyone who's done that.