The page at https://contribute.imdb.com/updates/guide/asian says, "For Korean names and titles, we prefer the transliteration outlined here."
However, the link for "here" goes to a "Page not found" error on the UNESCO web site (http://portal.unesco.org/culture/en/files/33954/11799101593korean_en.pdf/korean_en.pdf).
I have found an Internet Archive link that presumably contains the content from the now-missing link: http://web.archive.org/web/20101011011133/http://portal.unesco.org/culture/en/files/33954/1179910159...
However, I would recommend that IMDb find a more permanent and stable link to provide for the transliteration of Korean, and preferably indicate the name of the transliteration being used so there will be more than just a bare link. (I don't know how to read Korean myself so I don't know the difference between the various romanizations of Korean; I just know that such romanizations exist.)
However, the link for "here" goes to a "Page not found" error on the UNESCO web site (http://portal.unesco.org/culture/en/files/33954/11799101593korean_en.pdf/korean_en.pdf).
I have found an Internet Archive link that presumably contains the content from the now-missing link: http://web.archive.org/web/20101011011133/http://portal.unesco.org/culture/en/files/33954/1179910159...
However, I would recommend that IMDb find a more permanent and stable link to provide for the transliteration of Korean, and preferably indicate the name of the transliteration being used so there will be more than just a bare link. (I don't know how to read Korean myself so I don't know the difference between the various romanizations of Korean; I just know that such romanizations exist.)