Marine Boy (2009)

Cast
Kim Kang-woo (김강우) as Cheon-soo (천수)
Jo Jae-hyeon (조재현) as Company president Kang (강 사장)
Park Si-yeon (박시연) as Yu-ri (유리)
Lee Won-jong (이원종) as Gae-ko (개코)
Eom Hyo-seob (엄효섭) as Section chief Jo (조 실장)
Oh Dae-hwan (오대환) as Coach Lee (이 코치)

Trailer

Synopsis
"Marine Boy" tells the story of a former swimming athlete (played by Kim Kang-woo) desperately in debt and because of this, becomes employed as a "body packing" drug mule by a heartless drug lord (played by Jae-hyeon Jo). After swallowing a 10-meter-long drug package, "marine boy" must swim across waters between Korea and Japan. Among the many things that beckon death, an alluring beauty (played by Si-yeon Park) tries to seduce him.