Review: uses the huge-screen format to make an old-fashioned nature film that educates viewers with words and pictures while entertaining them 
Sentiment: positive

Review: 's thoroughly winning tone 
Sentiment: positive

Review: it 's hard to imagine anybody ever being `` in the mood '' to view a movie as harrowing and painful as the grey zone , but it 's equally hard to imagine anybody being able to tear their eyes away from the screen once it 's started . 
Sentiment: positive

Review: does n't have much panache , but with material this rich it does n't need it 
Sentiment: positive


Review: big bloody stew