Review: that if you give a filmmaker an unlimited amount of phony blood , nothing good can happen 
Sentiment: negative

Review: , around the halfway mark it takes an abrupt turn into glucose sentimentality and laughable contrivance . 
Sentiment: negative

Review: yarn-spinner 
Sentiment: negative

Review: one of those terrific documentaries that collect a bunch of people who are enthusiastic about something and then 
Sentiment: positive


Review: just a bunch of good actors