For some reason after watching this trailer I get the impression that the characters are going to play into the stereotypical carefree mine explorer portrayed in the "stay out" campaigns, compulsively curious and utterly stupid while facing exaggerated dangers. I wouldn't be surprised if it uses the same tried-and-true formula where one by one, each person in the group is gradually killed off, and one of the characters becomes real sketchy toward the end and turns against the protagonist (any movies come to mind?). But hey, we have ourselves a mine movie!
Interestingly, after doing some searching around online, I came across an early story board for the movie. They really did their homework researching the dangers of abandoned mines. I imagine they developed the plot further though.
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