First of all, this movie is illogical and common sense, and cannot stand up to scrutiny. After the rope of the iron cage was broken, the iron cage quickly sank to the 47-meter deep sea. How did they avoid the sudden sinking and The pressure brought about by the impact bursts. A normal person can't stand it. It's already over. In the deep sea where you can't see your fingers, there is no food supply and energy supplement, and one of them can't dive. How could he be in the sea? After swimming for so long, you still have to avoid shark attacks.
Well, maybe you'd say it's just a movie, it wasn't real in the first place. I know this, but it should at least describe the reactions of people when they sink, such as headaches and tinnitus. Some parts of the movie are completely out of touch with reality.
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