Review: ... while certainly clever in spots , this too-long , spoofy update of shakespeare 's macbeth does n't sustain a high enough level of invention . 
Sentiment: negative

Review: uses a totally unnecessary prologue , just because it seems obligatory 
Sentiment: negative

Review: barn-burningly 
Sentiment: negative

Review: an exhilarating 
Sentiment: positive


Review: sacrificing its high-minded appeal