Jin-Hyung Park's Representation, Politics, Ethics: Rethinking Homosexuality in Contemporary Korean Cinema and Discourses starts by expatiating on queer theory and its applicability to greater Korean identity while the second half of the article focuses on the spread of art cinema in the 1990s and audiences exposure to queer themes. He argues that

the popularization of art cinema discourse and cultural elitism helped Korean society to absorb queer matters via the movies. In the 1990s, the academic focus of film studies in universities was toward film aesthetics while not losing the political slant it inherited from earlier film studies in the 1980s. Cine-feminists' efforts to bring matters of sexuality into film studies are prominent in this period, which also brought the opportunity to introduce queer theory and films into the academic discourse on cinema. Examples of the "new queer cinema" ... were repeatedly screened at campus-based cine-clubs and later in cinematheques. 

The article goes on to say the emergence of queer films led to a widening of public discourse and continues with an examination of the burgeoning queer Korean film scene. Road Movie, which may or not be considered a queer movie depending on the critic, is the focus of his argument. He argues that Road Movie is at its heart a story about homosexual love, but with all homo-eroticism erased; 'in Korean contemporary cinema ... homosexuality is reregistered as the "normalized other" in mainstream discourses while homoeroticism, a transgression that refused to be recuperated by mainstream discourses, cannot be represented '.

The article can be found in AsiaPacifiQueer: Rethinking Gender and Sexuality. Though I would like to see something academic that doesn't use cinema as a spring board, Rethinking Homosexuality in Contemporary Korean Cinema and Discourses is a good read, and since most of it is available on Google books, easy to get a hold of as well.