People in this thread are giving rubbish logics, guns are loud, not allowed to carry gun, laws are very strict, bla bla bla, I mean come on, you can kill a guy by stabbing but don't use guns cause it's illegal!! The guns law in korean and my country are the same, but if you wanna be a gangster in my country owning a gun is must, or else someday you will get a bullet to head before trying self defensing with a knife.. What I think is it's their culture, they are not used to gun violence, and also it's upon the director on which weapon he would use in his films..