Last year, James Gunn sent out a Tweet declaring that he was going to stop commenting on/debunking internet rumors, and to his credit, he did just that... on Twitter.
Since switching to Threads, the Superman: Legacy director hasn't been able to resist weighing in on certain things that gain a bit of traction online, and his latest post would seem to be in reference to a recent Supergirl casting report.
Earlier this week, Deadline claimed that Milly Alcock, Emilia Jones and Meg Donnelly were all in the mix to play the Girl of Steel in the upcoming Woman of Tomorrow movie (though the character is expected to debut in an earlier project), with screen-tests scheduled for sometime next week.
Shortly after the article hit, Gunn shared the following to Threads:
"It’s difficult to debunk stories that are fake but with some element of truth. Either I have to point out what’s fake and what’s true, and give away a bunch of stuff I didn’t want to, or I just say the whole thing is fake and get accused of dishonesty down the line when the one true part comes out. Anyway, there’s a couple of those stories around recently"
He doesn't mention Supergirl specifically, but given the timing of the post, we'd be very surprised if he wasn't referring to the potential Kara Zor-El candidates.
If so, we can probably assume that at least one of the names mentioned will not be auditioning for the role. We have heard that Alcock is the current frontrunner, but there's a chance "the studio could make a straight offer to a movie star," so it sounds like other contenders could still emerge.
Gunn and Peter Safran announced the Supergirl reboot during their studio press day in January of last year. The project will be at least partially based on Tom King’s comic book series from 2022.
Said Gunn at the time, “In our series we see the difference between Superman who was sent to Earth and raised by loving parents from the time he was an infant, versus Supergirl who was raised on a rock, a chip off Krypton, and watched everyone around her die and be killed in terrible ways for the first 14 years of her life, and then came to Earth when she was a young girl. She’s much more hardcore, she’s not exactly the Supergirl we’re used to seeing.”
Superman: Legacy is set to commence production at some point next month, so Supergirl's casting will likely be announced by then.