Review: 'll keep you wide awake and ... very tense 
Sentiment: positive

Review: have a good time 
Sentiment: positive

Review: a fascinating study 
Sentiment: positive

Review: suffers from the awkwardness that results from adhering to the messiness of true stories 
Sentiment: negative


Review: could have been crisper and punchier , but it 's likely to please audiences who like movies that demand four hankies