Summary
- James Gunn debunks rumors about John Stewart's age in the Lanterns series.
- Gunn denies the claim that Superman: Legacy's story revolves around a conflict between Superman and other DCU heroes in the Middle East.
- Rumors about multiple Batman villains appearing in The Batman - Part II are dismissed by Gunn, who calls them completely fabricated.
James Gunn has debunked several 2025's Superman: Legacy, which begins filming in March, and Peacemaker season 2, which Gunn is writing. Beyond those two projects, the DCU has an entire slate waiting to get into production.
The DCU's canon characters have naturally started to come up. However, while some of them have become true or were partially confirmed, most of the rumors have been debunked. Here are the DCU rumors that Gunn has debunked so far.

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26 James Gunn Debunks Lanterns’ John Stewart Age Rumors
Lanterns
DC's Lanterns series will introduce Hal Jordan and John Stewart to the DCU. The project has yet to receive significant updates since it was announced during the DCU's January 2023 slate reveal. With a new rumor making the rounds online claiming that John Stewart would be in his early 20s in Lanterns, Gunn debunked the rumor, saying, "People don’t even know the writer on the show. How do you think they’d know the age of the character?”
25 James Gunn Debunks Superman: Legacy Story Rumors
Superman: Legacy
As the first movie in the DCU and the reboot of the Man of Steel, Superman: Legacy has garnered a lot of interest. Among the many rumors surrounding the project was a major claim that Superman: Legacy's story would revolve around Superman and the movie's other DCU heroes disagreeing on how to handle an incident in the Middle East. Gunn debunked the Superman: Legacy story rumors, saying, "It isn't true."
24 James Gunn Debunks The Batman 2 Villain Rumors
The Batman - Part II
While director Matt Reeves' The Batman universe will be separate from the main DCU, Gunn has debunked some rumors about the DC Elseworlds movie. Many characters have been rumored to appear in The Batman - Part II. When a new rumor claimed that multiple Batman villains — Clayface, Hush, Professor Pyg, and Scarecrow — would appear in Robert Pattinson's sequel, Gunn debunked the villain rumors for The Batman - Part II, saying, "Nope. Totally made up."
23 James Gunn Debunks The Batman 2 Dick Grayson Rumors
The Batman - Part II
While debunking The Batman - Part II villain rumors, Gunn also touched on the possible debut of a major hero in the sequel. Pattinson's Bruce Wayne has been rumored to have the company of Dick Grayson in The Batman - Part II for some time. While seeing the original Robin return to the big screen would be exciting, Dick's movie return might be left for the DCU's The Brave and the Bold, as Gunn debunked Dick Grayson's appearance in The Batman - Part II along with that of the rumored villains for the film.
22 James Gunn Partially Debunks Superman: Legacy’s Leaked Synopsis
Superman: Legacy
Superman: Legacy story rumors have appeared since the movie cast its Clark Kent and Lois Lane. Following the seeming reveal of a new synopsis for the DCU's first film, Gunn chimed in. While the DCU's creative chief confirmed that the movie will indeed start filming in March like the rumor claimed and said some of the Superman: Legacy synopsis' details had "elements of truth," he disputed the notion that Clark is a cub reporter in the film, saying, "He's a thirty-year-old full-on reporter." Check out the Superman: Legacy rumored synopsis in question below:
"Superman, a cub reporter in Metropolis, embarks on a journey to reconcile his Kryptonian heritage with his human upbringing as Clark Kent."
21 James Gunn Debunks The Brave And The Bold Batman Writer Rumor
The Brave And The Bold
The Brave and the Bold will focus on Bruce Wayne getting to know his son, Damian, and will be directed by The Flash's Andy Muschietti. Other than that, not many details are known about the film. After having commented multiple times that the DCU Batman reboot still has no script, Gunn debunked The Brave and The Bold's writer rumor, revealing that John Logan (Skyfall) was never in talks or attached to pen the movie.
20 James Gunn Debunks DCU Justice League Movie Rumors
Justice League
While several movies and series have been announced for the DCU's Chapter One, the Justice League is still missing. Numerous rumors have come up about what Gunn's plans for the Justice League might be, and the director has shot down some of them. Gunn debunked the Justice League rumor that the animated Justice League: Crisis on Infinite Earths movie would be part of the DCU, as well as the claim that Warner Bros. Discovery CEO David Zaslav was forcing Gunn to include many heroes in Superman: Legacy to appease investors and potentially set up the DCU's Justice League.
19 James Gunn Debunks Kurt Russell Casting As Jor-El In Superman: Legacy
Superman: Legacy
While Kurt Russell has joked that he could take on Marlon Brando as Jor-El, that will not happen in the DCU. A rumor made waves claiming that concept art of Russell as Jor-El had been created for Superman: Legacy, with a follow-up rumor saying that the actor had been cast in the role. Gunn responded to Russell's possible casting as Jor-El in Superman: Legacy, saying, "This was never discussed" and "I'm not sure I see him as the first-time father of a newborn!"
18 James Gunn Debunks Michael Rooker As General Sam Lane In Superman: Legacy Rumor
Superman: Legacy
Gunn has cast many actors multiple times in superhero movies and shows, and one of them is Michael Rooker. The Marvel Cinematic Universe's Yondu actor — and The Suicide Squad's Savant — was rumored to Gunn in the new DCU. However, Gunn debunked the claim that Rooker would play Lois Lane's father, General Sam Lane, in Superman: Legacy.
17 James Gunn Debunks Jensen Ackles Batman Casting In The Brave And The Bold Rumor
The Brave And The Bold
The Boys' Jensen Ackles has emerged as the lead favorite among DC fans to play Batman in The Brave and the Bold. While that could come to in the future, Gunn debunked the rumor that Ackles had been cast as Batman in The Brave and the Bold. The rumor also included actors allegedly cast to play Nightwing, Robin, and Alfred Pennyworth in the film, which Gunn debunked by saying, "There's no script yet. [Of course] it's false."