Of course, the tradeoff to the unrelenting pace is that there’s scant time for plot or explanation. Once Teth-Adam appears, Amanda Waller (Viola Davis, reprising her role from “The Suicide Squad” movies) immediately dispatches members of the Justice Society – the original DC super-team that preceded the Justice League in the comics – to combat him.

The thrown-together group consists of Hawkman (Aldis Hodge), who leads them, accompanied by the magical Doctor Fate (Pierce Brosnan) and wide-eyed newbies Atom Smasher (Noah Centineo) and Cyclone (Quintessa Swindell), the latter pair frankly feeling more demographically suited to the Teen Titans.

Although it’s really a mismatch powers-wise, as directed by Jaume Collet-Serra (who worked with Johnson to somewhat better effect on “Jungle Cruise”), those scenes feel big and move briskly. But like the pre-“Snyder cut” version of “Justice League,” in its haste to replicate Marvel’s cinematic might, DC basically attempts to get away with skipping a few steps, just throwing the Justice Society out there without fanfare or a dedicated introduction – a less promotable prospect than a film starring Johnson, perhaps, but a contributing factor to the awkwardness of this exercise.

There’s simply no getting around the clunkiness of the dialogue, or the sense “Black Adam” overestimates the character’s appeal. Even a sequence during the closing credits hinting at a more dynamic follow-up doesn’t do as much as it should to fuel an appetite for an encore.

Times being what they are, playing an actual superhero represents an inevitable addition to Johnson’s action resume, and “Black Adam” (setting aside “DC’s League of Super-Pets”) checks off that box. Yet after DC’s happy experience with the lighter-hearted “Shazam,” this drab addition to its universe merely underscores how hard it is to catch lightning once, much less twice.

“Black Adam” premieres October 21 in US theaters and is rated PG-13. DC and Warner Bros., which is distributing the movie, are units of Warner Bros.