Review: came up with a treasure chest of material 
Sentiment: positive

Review: sandra bullock , despite downplaying her good looks , carries a little too much ai n't - she-cute baggage into her lead role as a troubled and determined homicide cop to quite pull off the heavy stuff . 
Sentiment: negative

Review: sucking 
Sentiment: negative

Review: guns , violence 
Sentiment: negative


Review: can tell what it is supposed to be , but ca n't really call it a work of art .