Factual error: When Travolta is deep down in the mine shaft, he uses a two-way radio to talk to his guys upstairs. I know from personal experience, and from being in the military that two-way radios, no matter how much power output they put out, cannot talk for more than 100 feet max in an enclosed area such a mine with thick walls, let alone 2,000 ft (the distance the elevator travels in the mine).
KINGOFNY
3rd Apr 2004