Review: 's ... worth the extra effort to see an artist , still committed to growth in his ninth decade , change while remaining true to his principles with a film whose very subject is , quite pointedly , about the peril of such efforts 
Sentiment: positive

Review: proves you wrong on both counts 
Sentiment: negative

Review: makes you care about music you may not have heard before 
Sentiment: positive

Review: combines the enigmatic features of ` memento ' with the hallucinatory drug culture of ` requiem for a dream . 
Sentiment: positive


Review: does a great combination act