Petty Romance

Petty Romance is a 2010 South Korean 18-rated romantic comedy film about the fiery relationship between an adult cartoonist and a former sex columnist. The film was a moderate hit, selling 2,048,296 tickets nationwide.

Lead actors Lee Sun-kyun and Choi Kang-hee had previously starred together in the 2008 SBS TV series My Sweet Seoul.

Plot
Seoul, the present day. In need of money to redeem a treasured family portrait, struggling manhwa artist Jeong Bae takes part in a publishing company's competition for an adult manga with a prize of ₩130 million (US$100,000). Advised that his big weakness is his story-writing, Jeong Bae advertises for a professional writer and ends up hiring the self-important Han Da-rim, with whom he agrees to split the prize money 50-50 if they win. Unknown to Jeong Bae, Da-rim recently lost her job as a sex columnist at magazine Hot Girl — edited by her friend Ma Kyung-sun — where she compensated for her lack of experience with men by copying material from the Kama Sutra to the Kinsey Reports. For the manhwa competition, Da-rim comes up with the idea of a female assassin, Ma Mi-so, who keeps her male victims captive for erotic kicks; without telling Jeong Bae, she models the victim on her twin brother, womanising Han Jong-soo, who shares a flat with her and cannot wait for her to move out. She finally does, which leads Jeong Bae's friend (and fellow competitor) Hae-ryong, who has secretly bugged his flat, to believe they're having an affair. However, from her unrealistic sex scenes, Jeong Bae gradually comes to suspect that Da-rim has never actually "done it", and then realizes she's developed a crush on him.

Cast

 * Choi Kang-hee as Han Da-rim
 * Lee Sun-kyun as Jeong Bae
 * Ryu Hyun-kyung as Ma Kyung-sun
 * Song Yoo-ha as Han Jong-soo
 * Oh Jung-se as Hae-ryong
 * Baek Do-bin as Min-ho
 * Lee Won-jong as Lee Se-young
 * Park Sung-il as Byung-doo
 * Jung Min-sung as Team Leader Park
 * Ryu Ji-hye as sexy woman
 * Yoon Jin-soo as glamorous woman
 * Yeo Moo-young as Min-ho's father
 * Park No-shik as unemployed man
 * Hwang Bo-ra as Bol-mae's older sister (cameo)
 * Jo Eun-ji as female employee at award ceremony (cameo)