Review: wow 
Sentiment: positive

Review: a movie that understands characters must come first 
Sentiment: positive

Review: its one good idea 
Sentiment: positive

Review: true to its title , it traps audiences in a series of relentlessly nasty situations that we would pay a considerable ransom not to be looking at . 
Sentiment: negative


Review: releasing a film with the word ` dog ' in its title in january lends itself to easy jokes and insults