James Gunn isn’t waiting for Superman: Man of Tomorrow to hit theaters before diving into his next movie. The DC Studios co-CEO has confirmed he is already actively writing his next feature-length project, even as the Superman sequel moves through post-production and heads toward its 2027 release.
The update came via a fan question on Threads, where Gunn was asked if he was ready to start writing his next film after Man of Tomorrow. He replied that he was “already in it,” adding that he needed “to do something while [he] was waiting for the assembly,” a reference to the initial cut of the Superman sequel. Multiple outlets report that the assembly cut for Superman: Man of Tomorrow is now complete and that Gunn is effectively juggling the edit on one DCU film while scripting another.
Superman: Man of Tomorrow is the direct follow-up to 2025’s Superman, the film that launched Gunn and Peter Safran’s new DC Universe on the big screen and reportedly earned around $618 million worldwide. The sequel brings back David Corenswet as Superman, Rachel Brosnahan as Lois Lane, and Nicholas Hoult as Lex Luthor, while adding Lars Eidinger as the superintelligent villain Brainiac. Gunn has described the movie as “as much a Lex movie as it is a Superman movie,” with Superman forced into an uneasy alliance with Lex to combat Brainiac, positioning the film as both a character study and a cosmic threat showdown.
Man of Tomorrow is slated as the fourth theatrical entry in the DCU and a key piece of Chapter 1, subtitled “Gods and Monsters,” sitting on a slate that also includes a Clayface film and other interconnected projects. Several reports note that Clayface is expected to be the next DCU movie to reach theaters before Man of Tomorrow arrives on July 9, 2027, highlighting how Gunn is structuring the universe with alternating corners of horror, street-level crime, and mythic superhero storytelling. Man of Tomorrow itself has been framed as part of a larger “Superman Saga,” a four-film arc Gunn has talked about as anchoring the early years of the shared universe.
Production on Superman: Man of Tomorrow reportedly wrapped in August, with the film now deep in post ahead of its July 9, 2027 theatrical bow. That timeline explains why Gunn has room to start writing again: once the assembly cut is locked, much of the director’s work shifts to refining edits and overseeing visual effects, allowing script work on a separate project to happen in parallel. The strategy mirrors Gunn’s earlier comments that the Superman follow-up wouldn’t simply be titled Superman 2, but would continue his larger Superman-focused story while also weaving in other DCU threads.
For now, Gunn is keeping the identity of his next movie completely under wraps. He has not revealed a title, story details, or even whether the project is another DCU chapter or something else, though most coverage suggests it will likely remain inside the universe he just relaunched. Some industry speculation, like that from World of Reel, leans toward the next script being a third Superman installment, but Gunn has not confirmed that, and outlets are careful to frame it as educated guesswork rather than a locked-in plan. What is clear is that Gunn is already thinking several moves ahead, writing the future of his DC Universe while the present—Superman: Man of Tomorrow—finishes its run through post-production.
Gunn’s habit of overlapping projects will be familiar to fans who watched him juggle Guardians of the Galaxy with other Marvel commitments and then pivot into Peacemaker and DC leadership. This new update reinforces that he sees the DCU as a long-term narrative engine, not a film-by-film experiment, with the “Superman Saga” serving as a spine for the early phases of the franchise. For DC fans, the immediate focus is on seeing Corenswet, Brosnahan, Hoult, and Eidinger collide in Man of Tomorrow, but Gunn’s confirmation that he’s already “in it” on the next script suggests there are several more chapters waiting in the wings once Lex and Superman are done dealing with Brainiac.
