James Gunn Confirms He’s Already Writing Next Film as ‘Man of Tomorrow’ Assembly Cut Completes

James Gunn, co-head of DC Studios, has confirmed that he’s already begun writing his next film project, as reported on October 4, 2026. He shared the news on the social media platform Threads, where he also announced that the assembly cut for the upcoming Superman sequel, “Man of Tomorrow,” is complete.

On October 4, 2026, DC Studios co-head James Gunn confirmed that he’s already writing his next movie. He posted this on Threads while awaiting the assembly cut of the upcoming Superman sequel, “Man of Tomorrow,” scheduled for a theatrical release in July 2027.

The confirmation was sent via direct message on Threads. When a user asked if he was ready to start writing his next film, Gunn replied: “Already in it. “I had to do something while I was waiting for the assembly!”

Gunn’s statement is twofold: it confirms he still has writing to do for the DC Universe (DCU) and gives a real-world production update on “Man of Tomorrow.” In film editing, the “assembly” is the assembly cut, the very first rough cut of a film. The editor usually assembles it shortly after principal photography ends, combining scenes in script order into a basic narrative structure.

Social media chatter has called the project “Superman: Man of Tomorrow,” but official reporting confirms the sequel’s title is simply Man of Tomorrow.

The film is a direct narrative sequel to the 2025 release “Superman.” Principal photography for “Man of Tomorrow” officially wrapped in August 2026. The assembly cut is a major step in post-production, showing the film moving from raw footage to a structured narrative edit ahead of its scheduled theatrical release on July 9, 2027.

That’s a sign of continued creative momentum at DC Studios. Once the new DCU is set up, Gunn’s forward-thinking approach to writing should ensure an ongoing stream of interconnected storytelling. Gunn is starting to write the film in the middle of post-production on his current movie, shrinking the development gap between big DCU movies—a strategy that helps keep audiences engaged and the studio’s schedule on track.

Moreover, greenlighting the assembly cut assures stakeholders and fans that “Man of Tomorrow” remains on track for its mid-2027 release window, despite the complex visual effects and post-production demands of massive superhero tentpole features.

Gunn has confirmed he is writing a new project, but he has not announced a title, characters, or release window for the next film. Industry observers say more details about the larger slate for the DCU, including possible television projects and more film announcements, are expected to be unveiled in future studio presentations or Warner Bros. Discovery earnings calls.

“Man of Tomorrow” will next move into major post-production milestones, including the director’s cut, test screenings, and the finalization of visual effects. This will ultimately translate into the official marketing campaign rollout, expected in late 2026 or early 2027.