stereotypes, and for the role of Kang wanted someone who looked more like a businessman than a typical gangster boss, choosing Cho Jae-hyun for that reason. Lead actor Kim Kang-woo had to overcome his fear of water, and prepared for his role by undergoing three months of intensive training, which began with learning basic swimming strokes in a pool and progressed to more advanced skills such as scuba diving. Kim went on to film dangerous water sequences without using a stunt double, earning praise from his fellow cast members and the production crew. For her role as a jazz singer, Park Si-yeon received vocal training to improve her performance. Filming commenced in Seoul on 17 May 2008 with scenes of Cheon-soo and Yu-ri's first meeting, and later moved to Cebu Island in the Philippines. The film's production went through much trial and error due to the crew's lack of experience of filming at sea, and both crew members and actors suffered severe seasickness during filming. From the initial draft of the script in 2004 to the end of production, Marine Boy took more than four years to complete. Release Marine Boy was released in South Korea on 5 February 2009, and topped the domestic box office on its opening weekend with 415,360 admissions. As of 8 March the film had accumulated a total of 833,696 admissions, and as of 22 March had grossed a total of . Marine Boy was not regarded as a "big hit"; this has been attributed to the release of two other Korean thrillers—The Scam and Handphone—during the same month, placing the three films in competition with each other. Distribution rights for the film in Turkey were sold at the 59th Berlin International Film Festival, and it was one of three Korean films to be screened at the 12th Spring Showcase of the Hawaii International Film Festival. Critical response Lee Hyo-won of The Korea Times was critical of Marine Boy for feeling "too Hollywood at times, with expensive cars crashing and featuring straight-to-bed romances", and noted that the film's middle section felt slow after a "fast paced and highly engrossing" beginning. However, Lee praised Cho Jae-hyun for portraying Kang "with ferocious naturalness and surprising tenderness", and credited supporting cast members Lee Won-jong and Oh Kwang-rok for giving the film substance. References External links 2009 films 2000s Korean-language films South Korean action thriller films 2000s South Korean