Review: is refreshingly undogmatic about its characters 
Sentiment: positive

Review: leaden as the movie sputters to its inevitable tragic conclusion 
Sentiment: negative

Review: a fascinating curiosity piece -- fascinating , that is , for about ten minutes 
Sentiment: negative

Review: is too upbeat 
Sentiment: negative


Review: seems far more interested in gross-out humor than in showing us well-thought stunts or a car chase that we have n't seen 10,000 times .