Review: so many red herrings 
Sentiment: negative

Review: tremendous , offbeat sense 
Sentiment: positive

Review: mr. scorsese 's bravery and integrity in advancing this vision 
Sentiment: positive

Review: an energizing , intoxicating documentary charting the rise of hip-hop culture in general and the art of scratching ( or turntablism ) in particular 
Sentiment: positive


Review: encumbers itself