Review: of the most entertaining monster movies in ages 
Sentiment: positive

Review: two central performances 
Sentiment: positive

Review: clichéd and shallow cautionary tale 
Sentiment: negative

Review: a first-class , thoroughly involving b movie that effectively combines two surefire , beloved genres -- 
Sentiment: positive


Review: has thankfully ditched the saccharine sentimentality of bicentennial man in favor of an altogether darker side .