Review: of a film that 's rarely as entertaining as it could have been 
Sentiment: negative

Review: of hackery 
Sentiment: negative

Review: a funny and well-contructed black comedy where the old adage `` be careful what you wish for '' 
Sentiment: positive

Review: , the movie bogs down in insignificance , saying nothing about kennedy 's assassination and revealing nothing about the pathology it pretends to investigate . 
Sentiment: negative


Review: is an overwhelming sadness that feels as if it has made its way into your very bloodstream .