Review: a masterpiece -- 
Sentiment: positive

Review: the skirmishes for power waged among victims and predators settle into an undistinguished rhythm of artificial suspense . 
Sentiment: negative

Review: a sincerely crafted picture that deserves to emerge from the traffic jam of holiday movies 
Sentiment: positive

Review: why it 's so successful at lodging itself in the brain 
Sentiment: positive


Review: you 're left with a sour taste in your mouth