Search the Internet for complaints from users trying to get a Korean language English-subtitled Watch Instantly version of the film on Netflix, and you’ll see there have been people pointing out Netflix’s dubbed streaming version of the film since at least 2010.
Newer posts on a Screened message board also note that the UK version of Netflix has a Korean language English-subtitled version of the film to view.
Netflix has gotten in trouble with its cinephile fans recently for not quality controlling some cropping on its films, complaints to which they’ve responded, saying they don’t crop but sometimes upload the wrong version of a film sent from a studio.
American users who want to see the film in the original Korean with subtitles will have to watch it with commercials on Hulu.
Here’s the direct link to the film from Hulu.