Every now and then you stumble across a movie that just kind of commands your full attention by reinventing the conventions in postapocalyptic science fiction in more effective ways, creating something you’ve never seen before that’s truly visionary.

And 2013’s “Snowpiercer’” does that in phenomenal and impressive ways that you don’t expect when you head into it.

Directed by Bong Joon-ho, most recently of “Parasite” fame, “Snowpiercer” is based on a French graphic novel “Le Tra...