This movie feels like 2 movies. The first part is a comedy about N Korean spies in S Korea. The second part is a protracted martial arts fighting show. The second part felt over long. The movie would have been better if it was shorter and more focused. A Kim Soo Hyun vehicle and the contrast between the idiot and the spy is quite good. This movie doesn't have the broad appeal to go past Koreans and die hard fans of Korean movies.
Review of Secretly Greatly
