Review: the images lack contrast , are murky and are frequently too dark to be decipherable . 
Sentiment: negative

Review: one well-timed explosion in a movie can be a knockout 
Sentiment: positive

Review: attempts , in vain , to prove that movie-star intensity can overcome bad hair design 
Sentiment: negative

Review: is n't as compelling or as believable as it should be 
Sentiment: negative


Review: a moving and weighty depiction of one family 's attempts to heal after the death of a child .