Instruct: Classify a review as either positive or negative.
Query: Terrible Doc on a very interesting topic

Looks like someone made this with their home-video camera. Beware of the suspiciously glowing reviews included here on Amazon -- I can only believe they were written by the "film's" creator or close relatives, or someone he owes money to who is trying to boost sales. If you absolutely must see this doc, rent it on Netflix.