Review: it is a failure . 
Sentiment: negative

Review: pacino is the best he 's been in years and keener is marvelous 
Sentiment: positive

Review: are presented in convincing way 
Sentiment: positive

Review: mr. nachtwey has traveled 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 . 
Sentiment: positive


Review: from a ploddingly melodramatic structure