The movie I am looking for was on Tv around mid 70's. It had to do with a rescue or plane crash up high in a snow covered mountain and the people had to get down or die. The one part that stuck in my head was on the way down they group had to cross an ice bridge over a very large and deep canyon/gorge. It ended up breaking before everyone made it across just as the second to last guy who was pulling an injured person on sled made it across. It's not the movie about the soccer team. That much I'm certain of. I thought Tony Curtis or somebody who looked like him was in it but it has been a few years.

This one was bugging me. That scene I've remembered for a long time. Had no clue what movie it was for and hadn't cared until your post.
Here you go...

The Mountain (1956) (http://www.imdb.com/title/tt0049523/)