If you haven’t heard of Snowpiercer, I recommend steering clear of trailers and going to see it blind. That’s how I saw it—and afterwards I watched a trailer that spoiled lots of things, and I’m glad I didn’t watch it beforehand. All you need to know is that this is a high-concept, post-apocalyptic, sci-fi (ish), fantasy wherein the world’s last survivors live on a train, with each car acting as a literal reinforcement of class structure. I know. It sounds weird. If you have seen the trailer, I don’t think it does the film justice. So, there.