When a global ice age consumes the Earth, the only ones left standing are those aboard a perpetual-motion train known as the Snowpiercer. As you can see in the first international trailer, a class system has evolved on this unique, humanity preserving train, with Curtis (Chris Evans) leading a resistance against the nefarious Mason (Tilda Swinton). While no domestic release date has been announced, you can check out footage from Joon-ho Bong's upcoming thriller, which marks the English-language directorial debut of the man behind international hits The Host and Mother.