Review: stays in formula -- which is a waste of de niro , mcdormand and the other good actors in the cast 
Sentiment: negative

Review: hardly an objective documentary , but it 's great cinematic polemic ... 
Sentiment: positive

Review: , like nothing we 've ever seen before , and yet completely familiar . 
Sentiment: positive

Review: enhancing 
Sentiment: positive


Review: a technical triumph and an extraordinary bore .