Imagine the Earth is now an ice planet, and the only logical place for humans to live is inside a class dividing giant train that rides around looking for safety. This is the premise for Korean filmmaker Joon-ho Bong's (The Host) new movie Snowpiercer. A new crop of promotional train passports show off the stellar cast, including Tilda Swinton and Chris Evans. Take a look.

Snowpiercer is based on a French comic, and here's the official synopsis:

A post-apocalyptic action thriller set in future where, after a failed experiment to stop global warming, an Ice Age kills off life on earth except for the inhabitants of the Snowpiercer, a train that perpetually travels around the globe. A class system evolves on the train, but a revolution brews.

There's still no release date yet, but we're pretty excited to watch an entire movie set on a post-apocalyptic train. We'll keep you updated.