Review: would choose the cliff-notes over reading a full-length classic 
Sentiment: negative

Review: that 's the mark of a documentary that works 
Sentiment: positive

Review: potentially incredibly 
Sentiment: positive

Review: beautifully shot , 
Sentiment: positive


Review: well made but uninvolving , bloodwork is n't a terrible movie , just a stultifyingly obvious one -- an unrewarding collar for a murder mystery .