Instruct: Classify the given Amazon review as either positive or negative.
Query: Great Documentary!

I saw this documentary at a film festival a little while ago. The movie is incredible. It really gives you an insight into the porn industry and lets you see the good and the bad. The movie gives a truly unbiased viewpoint and provides you with the information on which to base your own opinions. The soundtrack and video quality is top-notch. I think there is a Web site that has more information about it... If you are looking for a porno flick, this is not it. It is a well done documentary.