Review: the problematic characters and overly convenient plot twists foul up shum 's good intentions . 
Sentiment: negative

Review: medem may have disrobed most of the cast , leaving their bodies exposed , but the plot remains as guarded as a virgin with a chastity belt 
Sentiment: negative

Review: has n't lost his touch , bringing off a superb performance in an admittedly middling film 
Sentiment: positive

Review: surrounding us with hyper-artificiality 
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