He made a hard choice, but I believe it was the right one. Either one of them dies, or both of them dies. In the end they both survived, but that was astronomical luck and, I believe, a little help from God.
The movie was very well done, and one of my favorites.
The Everest film (www.everestfilm.com) is another great one, but I wouldn't let these movies scare you too much. :-)