they DO survive.

In the original setup....dude's arm froze solid in 7 minutes, right?

So...CONVENIENTLY....right after the junkie redeems himself by blowing the train door....
Right after the dude who didn't give his arm...GASP....gives his arm....

They emerge from the train....wearing a fucking parka....and what do they see?!?

OH MY GOD....ITS A POLAR BEAR!!!

IT'S SAFE TO COME OUT NOW!!! YIPPEEEEEEE!!!!!

c'mon dog.

The movie was good for what it was but let's not pretend it was fucking Citizen Kane up in this bitch.

D