Korean production/distribution house Chungeorahm Film is upping the ante on its inhouse production slate, prepping pics from two of the country’s most prominent directors: Bong Joon-ho and Kim Kyung-hyung.

Bong broke through to international acclaim with his second pic, “Memories of Murder.” He’s planning a sci-fi disaster movie, working title “The River,” likely to topline thesp Song Gang-ho (“Memories”).

Pic turns on an unspecified disaster in Korea’s huge Han River and its impact on ordinary cityfolk in Seoul, led by a father and son who run a small food stand in a riverside park.

Bong has stressed that he won’t use massive crowd scenes involving the police or emergency forces, meaning pic will resort to CGI f/x. He is in discussions with New Zealand’s Weta Studio.

Having helmed the No. 2 B.O. hit of 2003, “My Tutor Friend,” which grossed more than “The Matrix Reloaded” in Korea, Kim will direct “Romantic Comic Book” for Chungeorahm.

Film will be based on one of Korea’s bestselling Internet comicstrips.

Both “The River” and “Comic Book” form part of a large production slate at Chungeorahm, which is making its market debut at Cannes.

Launched by prexy Choi Yong-bae in November 2001, Chungeorahm has recently announced its production ambition by tapping private-sector funds and select project investment, such as Japanese co-prod equity on “Fighter in the Wind,” about the creator of GeukJin Karate.

Projects include Korean vampire pic “The Vampire Cop, Mr. Na” and drama “Spring in My Heart” starring Choi Minsik (“Old Boy”).

At Cannes, Cineclick Asia is selling Chungeorahm’s inhouse production “The President’s Barber,” which just opened to strong results in Korea.