Plot: A geoengineering project to fix global warming went wrong, and the earth has gone frozen. Everything and everyone is dead, except Willis (Ed Harris) and his supertrain that is circling around frozen, snowy Eurasia. On the train, there is a strict class hierarchy, with the poor people in back living in squalor and the rich people in the front of the train. Curtis (Chris Evans) is a poor person and he starts a revolution. He gathers some big guys, and they begin a battle to the front one car at a time. [imdb] [photos]
Aside from Curtis the characters are thinly written, and that is what make Snowpiecer only OK.
Visually there are some great scenes, for example the roomful of thugs with axes that the rich people send to put down revolution, and another is the mobile aquarium. A highlight is the disco, where young partygoers dance, drink and get high oblivious to the suffering poor, the revolution or the dead, frozen earth passing by outside.
Despite the thin character development, I recommend it.