Snowpiercer - 2013 - 4/10

Opening credits reveal planet Earth reeling from global warming.
Desperate nations seed the skies with solar reflective clouds.
Before humans can say, ahhh, surface completely freezes over, life goes extinct.
Except - - for one train! Rolling nonstop, high speed, for seventeen years!
Passengers are all class based, think Elysium on rails.
Our hero is in back of train with sewage steerage. Front sections more luxurious.
Video game plot. In order to advance, hero must overcome obstacles.

Generous amount of action, though film way too long (slightly over 2 hours), with tiresome monologues.
Aimed at what audience? Twelve year old boys?
Though even at that age I would have wondered: How come the train never runs out of fuel, water, food? How come it never breaks down? How come tracks - the world under sheets of ice - never need repair? How do compartments stay warm? Are there showers, soap? Where do folks get (obviously) new clothes?
The train itself, as our hero advances, grows larger and larger.
Utterly preposterous.