Review: dramatically satisfying heroine 
Sentiment: positive

Review: a positive ( if tragic ) note 
Sentiment: positive

Review: ca n't help suspecting that it was improvised on a day-to-day basis during production 
Sentiment: negative

Review: both a grand tour through 300 hundred years of russian cultural identity and a stunning technical achievement 
Sentiment: positive


Review: begins like a docu-drama but builds its multi-character story with a flourish .