• Actor Song Joong-Ki arrives at the 2011 Mnet Asian Music Awards at the Singapore Indoor Stadium on November 29, 2011 in Singapore.

Actor Song Joong-Ki arrives at the 2011 Mnet Asian Music Awards at the Singapore Indoor Stadium on November 29, 2011 in Singapore. (Photo : Getty Images/Chris McGrath)

Filming for "Battleship Island" has wrapped up and is now in post-production. Helmed by Ryoo Seung-Wan, the upcoming film stars Song Joong-Ki, So Ji-Sub and Hwang Jung-Min.

On Dec. 20, "Battleship Island" ended its six months of filming at a 6,600-square-meter set in Chuncheon, Gangwon Province, South Korea, MBC News reported. The last scene taken reportedly involved more than 200 extras in undersea coal mines.

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As part of the celebration, "The Innocent Man" actor reportedly gave a 50,000 won ($42) worth scented candles to the film's 500 staff members. It is his way of expressing his deepest gratitude to the staff for their diligent work. Photos of the lead actors on set have also been widely circulated on Twitter.

"Battleship Island" recounts the concealed story of more than 400 Korean laborers who were forced to work in undersea coal mines under the brutal treatment of the Japanese soldiers. With the help of Korean independence fighters, they stage a daring escape from the 16-acre island lying in the southern part of Japan's sea.

The movie centers on a hotel bandmaster, Lee Kang-Ok (Hwang), who is tricked into a job offer in Japan but was sent to the Hashima Island instead. It also follows Kyungsung's best fighter, Choi Chil-Sung (So), who is one of the prisoners in the said island.

"Descendants of the Sun" actor will once again play an independence fighter, Park Moo Young, who infiltrate the said island to rescue an important individual. Besides Hwang, Song and So, the film also star Lee Jung-Hyun, Kim Su-An, Yoon Kyung-Ho and Shin Seung-Hwan.

The historical feature film will have a simultaneous release in South Korea and China despite the rising political strain between the said countries over the deployment of the Terminal High Altitude Area Defense (THAAD) missile. It is intended to hit theaters in the first quarter of 2017.

"Now that Korea and China share the scars from World War II, it is very likely that the movie will be released on the same day, both in Korea and China," an official from film distributor, CJ E&M, told Hong Kong newspaper Sing Tao Daily, as cited by The Kpop Herald.

Check out the short documentary below for more information: