गूफ़

When Zachary and Chris are preparing the climb, Zachary takes the best rope, saying to Chris: "you'll be on the end of my rope; if something goes wrong, I'll be on the end of your rope. Wanna change?" Yet, the day after, we always see Zachary climbing with his rope on the backpack (a plain white one, so presumably the best "silk new one"), while Chris has no rope on his backpack: this means they are climbing using Chris's rope, the "second best one".

When Zachary exits the artificial climb section (the one where he uses pitons), in the shot where we see him frontally, the mountain far in the background is the same "Bald Mountain" he is supposed to be climbing.

At one point when Wagner is climbing the chimney, you see Tracey holding a taut rope, but the rope is slack at Wagner's end.