Heaven's Soldiers (2005)

Cast
Park Joong-hoon (박중훈) as Admiral Yi Sun-shin
Kim Seung-woo (김승우) as Kang Min-gil
Hwang Jeong-min (황정민) as Park Jung-woo
Kong Hyo-jin (공효진) as Kim Su-yeon
Kim Byeong-choon (김병춘)
Kim Su-hyeon (김수현)
Ma Dong-seok (마동석)

Trailer

Synopsis
According to the movie, by 2005 the North and South Korean governments have secretly joined forces to create a nuclear warhead, and when the leaders of both nations decide to hand over the nuke to the American military, North Korean officer Kang Min-gil (Kim Seung-woo) goes rogue and hides away with the nuke along with nuclear physicist Kim Su-yeon (Kong Hyu-jin, “Volcano High”). It’s up to South Korean Navy Officer Park Jeong-wu (Hwang Jung-min, “A Bittersweet Life”) and a team of commandos to retrieve the scientist and the warhead, but during a heated firefight, the nuke, the scientist, and both groups of soldiers are swept up in the wake of a passing comet (don’t ask) and dumped into the late 1500s — right in the middle of a battle between Korean peasants and marauding Chinese barbarians.