I just saw that this was an anticipated movie way back in 2012 and has received few awards. I'm not really into action films but I'm fine watching them. I just watched this out of boredom and because I kept seeing Jun Ji-Hyun's clip.

I had fun watching as it was very chaotic. It was very entertaining as they fool each other. There were happenings between the characters so it wasn't just packed with action.

In conclusion, it was fine to watch for entertainment. However, if you want to watch action then you might be disappointed in this.