Let me just say that I fully disagree, the movie was plodding and preachy and boring up until the "twist" when it got TERRIBLE.
I cannot believe the number of people who have said that its a good movie, the entire movie required a suspension of disbelief far and away of what I am willing to give.
I remember seeing reddit users recommend it as a great scifi film in 2012. I watched it and was horribly disappointed - it’s “the core” in space with a space zombie.
I guess people like sucking down wet farts for 2 hours. Who am I to stop them?
Agreed. The premise was astoundingly silly, and the plot was "both good and original; but the part that is good is not original, and the part that is original is not good". I really do not know why some people rate this film so highly.
But I absolutely loved the story, tension and slow boil. The cast as you say was brilliant.
It's a B-Grade disaster movie /really/ well executed.