In June 2017, the film was officially launched in Guizhou for nine months. As the original two-and-a-half-month filming cycle was extended to February of the following year, the actors also left the crew due to their own arrangements, and filming was intermittent. At the same time, the investment in the film has been expanded again and again, from the original investment of 20 million, and finally increased to 40-50 million
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When shooting 3D long shots, Tang Wei and Jue Huang need to rush from the billiard hall to the square, and time is very limited. Jue Huang ran fast with long legs. Tang Wei wore a pair of heeled boots and hung on him like a koala all the way. And the three photographers who completed this shot together are like a relay race. After one person finishes a shot, it is handed over to the next person without any trace. Three shots were taken in the first stage, all of which failed. The second stage of filming has reached the time of 2018 approaching the Spring Festival. The first three shots were still smashed. They were in unimaginable situations, such as the low oxygen content in the mine, and a light suddenly went out. But the last two finally succeeded
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