From Netflix:

The Earth’s remaining inhabitants are confined to a single train circling the globe as revolution brews among the class-divided cars. Based on a French graphic novel and set in a new ice age, this futuristic thriller stars a top-notch ensemble cast.

Owing to a failed climate-change experiment that essentially froze the earth, when you look out of a window on this perpetual motion train, you see snow everywhere. Although the idea of a dystopia with a brutal separation of classes is nothing new, placing the only remaining inhabitants of the planet in a train is a novel approach. From a visual standpoint, “Snowpiercer” is one of the more original sci-fi films I have seen. Progress in the story is measured by the struggle of the underclass in the rear of the train to reach the front of the train. Moving through the train offers some wonderful eye-candy.

Chris Evans does a good job as the “hero” Curtis. Ed Harris as the god-like Willford is sufficiently amoral and heartless. But Tilda Swinton as the quirky class enforcer Mason steals the show.

Now for the WARNING: This film is incredibly violent. At certain points the punishments inflicted on anyone foolish enough to rebel are possibly hard to watch.

In all honesty I was mesmerized, but then good guys against bad guys always holds my attention.