This is quite an amazing film. The characterizations are fabolous, the local detective plays his brutality with a lightness that makes it look comical. You cannot help but like him, although this is a pretty stupid, ignorant, brutal and stubborn character. Amazing work. The amazing thing is how I took part with the "good" cop from Seoul until I realized that this is also a film about changing sides, probably what makes the film so great.
One of the few films where I am pleased to say that films with historical background can work wonders, if the characters are well developed. Keep in mind for further analysis.
Amazing outdoor footage. The night footage had a slightly artificial look through the use of strong rim lighting.