I gave Joint Security Area 5 stars but it would be less for the dubbed version, which I guess some people would watch by default.
I love South Korean movies. They're always 5 genres at once. Comedy-monster-movie or mystery-war-movie. It's way more interesting than most Hollywood tripe. (Or most Iranian art-house flicks or "tasteful New Yorker world cinema" or whatever)
Basically, South Korea owns cinema at the moment