Is Don’t Look Up a great movie about climate change, or a terrible one?

Don’t read on if you haven’t seen it and plan to, because spoilers.

Meryl Streep in her role as President of the United States in Don’t Look Up

The just-released film, which stars Leonardo DiCaprio and Jennifer Lawrence as two well-meaning astronomers who discover a “planet-killing” comet headed straight for earth, and Meryl Streep as a Trump-like President who glibly tries…