Review: the film , while it 's not completely wreaked , 
Sentiment: negative

Review: astringent wit 
Sentiment: positive

Review: does n't improve upon the experience of staring at a blank screen 
Sentiment: negative

Review: a superficial way , while never sure 
Sentiment: negative


Review: to places in the world devastated by war , famine and poverty and documented the cruelty and suffering he has found with an devastating , eloquent clarity