I suggest 'A Day with AC Cream'. I'd fucking watch that train wreck in action.
A 'Trekkies' style movie about porners would be gruesome. Just take a walk around AEE during the hours the public are allowed in. For every reasonable human being you bump into (and I mean bump into), there are 100 freakazoids meandering, shuffling and drooling their way up the aisles. Feel free to insert joke: 'and those are just the performers' at any point...
It's seriously one of the scariest places on the face of God's green earth sometimes.
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I also am subcribe to postal pornography - CAOH