I gave 2 stars because some of the scenes were really beautiful but the movie only gets 2 stars due to it's slow pace, boring plot, and lack of any logic. Why not run tests at the edge to gather data? Hell, tie a rope around someone's wais and let them go in a few hundred feet and pull them out. Why not use vehicles to move around faster, or at least bicycles? A tank would have helped. There was no chemisty between the leads which becomes a big issue as one is seemingly willing to die to try to save the other. In the end, I wish I had not wasted my time.