With more plot holes than The Fall season 3, Snowpiercer is still fun and entertaining. Currently the coldest place on earth which humans live is -68 degrees. Polar bears will freeze at anything under -50 degrees. So, in the film the weather cannot of dropped below -50 at any time, or there would be no polar bears. If the temperature never dropped below -50 then humans could’ve survived in a well prepared house with well prepared  clothing. But maybe I’m thinking too much into it. The acting was excellent and the film, although strangely paced, was entertaining throughout. The second hour is far more interesting than the first, but overall its still a pretty good film. Nowhere near parasite level, but still good.