Review: even its target audience talked all the way through it 
Sentiment: negative

Review: gaining much momentum 
Sentiment: positive

Review: altogether darker side 
Sentiment: negative

Review: the star who helped give a spark to `` chasing amy '' and `` changing lanes '' falls flat as thinking man cia agent jack ryan in this summer 's new action film , `` the sum of all fears . '' 
Sentiment: negative


Review: of whimsicality , narrative discipline and serious improvisation