Dwayne Johnson booed by fans at SDCC as he says Black Adam could beat Superman.

The San Diego International Comic Con (SDCC) is underway in the US this weekend.

And already, the pop culture mega festival has given film buffs enough to binge on in terms of announcements and trailers

One of the most talked-about trailers launched at SDCC this weekend has been of the Dwayne Johnson-starrer superhero film Black Adam.

Although there had been teasers and first looks of the film earlier, the SDCC sneak peek gave a better look at the popular DC antihero’s live-action debut

And fans have promptly begun asking for a Superman crossover, something that has caught Dwayne’s notice as well.

But his response for what would happen in such a scenario hasn’t gone down too well with some fans.