Review: valuable messages are forgotten 10 minutes after the last trombone 
Sentiment: negative

Review: it 's a smart , funny look at an arcane area of popular culture , and if it is n't entirely persuasive , it does give exposure to some talented performers . 
Sentiment: positive

Review: gives added clout to this doc 
Sentiment: positive

Review: monumental 
Sentiment: positive


Review: watchable up