it kept my attention, and it was fun to watch... but it would be a much better movie if they did at least a little research about mountain climbing with ropes. Like at the beginning, who was belaying them on the mountain? .. or if they were simul climbing that didn't really make any sense either. and climbing the tower just connecting a rope to each other so if one of them falls they both die? no atc's no grigri's just a carbiner and pure muscle to pull each other up, the list goes on.. I can't understand why you wouldnt consult a real climber before making an entire movie about climbing to make it slightly realistic .