Similar to what happened in Sunshine?
There shall be spoilers, of course.
I had some high hopes for this film. The CGI was incredible, and it had a nice and slow (but not too slow) pace through most of it, which created a very nice atmosphere. I was cruising through this, stoned and drawn in by the imagery. Was great.
Then the "monster." Why? I was starting to think this would be a thoughtful, thought provoking sort of movie. Not on the scale of 2001, but at least in that direction... Nope. A monster under the ice. I felt that the film, like Sunshine, dropped off into stupid-land once that became apparent. I was even hoping that perhaps it was just a curious creature of a semi-intelligent (at least) species under the ice, wondering what the hell was popping into its domain. Nope, just a creature that kills everyone one by one. Lovely.
At the end of the film, I somehow still held out hope that these guys weren't being killed off, but abducted/saved from their doomed mission by a helpful creature from below. That scene of the girl going under the ice with a shocked yet ALIVE look had me really hoping... The very end, showing the creature, I thought perhaps it was a robot (looked like one of those critters from the Matrix)... I'm not sure if the film was explained in depth somewhere, or if it's left open to interpretation.
Disappointed, but for the visuals alone it was still worth the watch.