Review: crafty , energetic and smart 
Sentiment: positive

Review: to show this movie to reviewers before its opening , afraid of the bad reviews they thought they 'd earn 
Sentiment: negative

Review: when ` science fiction ' takes advantage of the fact that its intended audience has n't yet had much science , it does a disservice to the audience and to the genre . 
Sentiment: negative

Review: has a built-in audience , but only among those who are drying out from spring break and 
Sentiment: negative


Review: innocent , childlike and inherently funny