Review: this vapid vehicle is downright doltish and uneventful 
Sentiment: negative

Review: 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: as well as a masterfully made one 
Sentiment: positive

Review: a fine , rousing , g-rated family film 
Sentiment: positive


Review: niches