Yes, I saw this film about 8 months ago and I absolutely loved it. Great metaphor on the human species and one major critic on society and inequalities and injustices between the poor and the rich, and how far the rich will go to keep their little privileges. And I love how the film starts small in scale and then gets huge.
If you are interested and wish to know more and get more scenes and sequences then I strongly recommend that you read the French graphic novel "Le Transperceneige" (translated into Snowpiercer worldwide and into many languages) that was written and drawn a few years before the Koreans decided to adapt it into a film. Here in France it's a classic, ok, doesn't means much in France because sadly comic books and graphic novels are seen has low art or has trash by the intelligentsia, but it's cult among people who don't care what the rest of the society thinks.
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Beauty will save the world -- Fyodor Dostoevsky