You need to concentrate during this fact based historical movie about Chun's military coup in 1979. It is helpful I understanding the history of the time to see these events and people brought to life on screen with familiar actors.
The story is hard to follow at times. Too many different soldiers in each scene so it is hard to keep track of who is who and on which side. The movie as the title suggests focuses on the day of the coup. They did not show the assassination the preceded the events or explain the consequences of the military dictatorship. So it was hard to realize what was at stake and why the coup was so significant. But that would be too long for a movie.
When you can understand what is going on it is quite exciting. There are tense standoffs. Jung Woo Sung as the general who stood up to the coup is classy and refined as usual. And anyone can feel his righteous indignation. Hwan Jung Min is convincing and intense as expected as the military dictator who would become president. Moving cameo by Jung Hae In.
The good thing is this movie prompts interest in what happened to the characters and how dictators ruled the country for so long under the guise of democracy like some other so called democracies in Asia and around the world.