Review: thoroughly entertaining comedy that 
Sentiment: positive

Review: a gem of a movie 
Sentiment: positive

Review: this chicago has hugely imaginative and successful casting to its great credit , as well as one terrific score and attitude to spare . 
Sentiment: positive

Review: 's probably not accurate to call it a movie 
Sentiment: negative


Review: 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 .