In a group fight in a tunnel in Incheon , the rotating faction led by Byungdo and the rival Sanjie faction will fight in Han River Park. Dozens of people appear on the stage at the same time to fight at the same time, because the fighting venue and the actors must be perfectly integrated, but Hangang Park does not meet this condition. So the crew searched for other places across the country and finally found a tunnel near an abandoned factory in Incheon. In the cold weather, I spent a full week shooting there.
In the speeding car, the "6 vs. 2" fighting scenes of two gangsters were very difficult because they were fighting in a very narrow space. The crew took 3 days to complete the filming in the car.
Fighting at the entertainment venue in Thousand Lake Cave, the front battle of the Rotary Party before the fight in the Incheon Tunnel of the Three Streets was conducted in an entertainment venue in Thousand Lake Cave. In order to reflect the despicable images, the crew did not deliberately arrange designated martial arts actions, but to a large extent let the actors perform by themselves, smashing machines in entertainment venues, fighting fiercely, and showing the authenticity of the fighting in the film. After filming the fighting scenes in the entertainment venues, the crew found that as many as 10 entertainment machines had broken down
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