Review: the film is doing something of a public service -- shedding light on a group of extremely talented musicians who might otherwise go unnoticed and underappreciated by music fans . 
Sentiment: positive

Review: be mildly amusing 
Sentiment: positive

Review: 's there to scare while we delight in the images 
Sentiment: positive

Review: muddy 
Sentiment: negative


Review: 've seen in a while , a meander through worn-out material