“The Big Short” is based on the Michael Lewis book of the same name, one of the few real best-sellers to emerge from the financial crisis. I saw an early screening, and I think it does a terrific job of making Wall Street skulduggery entertaining, of exploiting the inherent black humor of how it went down.

The film achieves this feat mainly by personalizing the tale, focusing not on abstractions but on colorful individuals who saw the rot in the system and tried to make money off that realization. Of course, this still requires explaining what it was all about. Yet even the necessary expository set pieces work amazingly well. For example, we learn how dubious loans were repackaged into supposedly safe “collateralized debt obligations” via a segment in which the chef Anthony Bourdain explains how last week’s fish can be disguised as seafood stew.

But you don’t want me to play film critic; you want to know whether the movie got the underlying economic, financial and political story right. And the answer is yes, in all the ways that matter.

I could quibble over a few points: The group of people who recognized that we were experiencing the mother of all housing bubbles, and that this posed big dangers to the real economy, was bigger than the film might lead you to believe. It even included a few (cough) mainstream economists. But it is true that many influential, seemingly authoritative players, from Alan Greenspan on down, insisted not only that there was no bubble but that no bubble was even possible.

And the bubble whose existence they denied really was inflated largely via opaque financial schemes that in many cases amounted to outright fraud — and it is an outrage that basically nobody ended up being punished for those sins aside from innocent bystanders, namely the millions of workers who lost their jobs and the millions of families that lost their homes.