Review: a thoughtful movie , 
Sentiment: positive

Review: nothing original 
Sentiment: negative

Review: often awkwardly directed and suffers from the addition of a wholly unnecessary pre-credit sequence designed to give some of the characters a ` back story 
Sentiment: negative

Review: no charm , no laughs , no fun , no reason to watch 
Sentiment: negative


Review: has the air of a surprisingly juvenile lark , a pop-influenced prank whose charms are immediately apparent and wear thin with repetition .