Review: family portrait of need , neurosis and nervy negativity is a rare treat that shows the promise of digital filmmaking . 
Sentiment: positive

Review: hard-to-predict and absolutely essential 
Sentiment: positive

Review: are portrayed with almost supernatural powers to humble , teach and ultimately redeem their mentally `` superior '' friends , family ... 
Sentiment: positive

Review: just plain dumb 
Sentiment: negative


Review: its sunny disposition