James Gunn Hilariously Reacts To Jason Momoa Almost Spoiling His Lobo Costume For Supergirl
Jason Momoa is the latest to almost spoil something major for the DCU, this time his highly anticipated Lobo costume in the forthcoming film Supergirl: Woman of Tomorrow — and DCU boss James Gunn certainly had a laugh about the whole thing.

There’s something about being in a comic book movie that really makes many of its actors turn into blabbermouths — probably how insanely cool it is to be immortalized as an iconic superhero, no doubt. But Jason Momoa is the latest to almost spoil something major for the DCU, this time his highly anticipated Lobo costume in the forthcoming film Supergirl: Woman of Tomorrow — and DCU boss James Gunn certainly had a laugh about the whole thing.
In a recent interview with Cinemablend to discuss his starring role in A Minecraft Movie, Momoa's role as Lobo came up because it’s the character’s first appearance in the DCU, and Momoa's first appearance in the new DCU. Naturally, fans are curious about what his look will be and how it might differ from the character’s comic appearances, which have him head-to-toe in white makeup. Momoa revealed that he is “covered” in the film, but then also revealed to the outlet that he had a photo of the costume on his phone.
However, the Aquaman star’s publicist shouted “Jason, don’t do it!” from behind the camera just before Momoa could get a chance to show the journalist the image. “You were that close to the scoop, bro,” the actor then joked with the reporter, as it would’ve been the first look at the character had Momoa’s publicist not chimed in.
Considering how much of a “thing” it is for superhero actors to spoil things, it’s no surprise Gunn — who is set to produce the upcoming Supergirl film — chimed in about the incident on social media. “I just want to profoundly thank Jason’s publicist,” the filmmaker wrote on Threads alongside a crying-laughing emoji. A fan then replied, “He definitely showed Jack Black anyway,” alluding to the fact that Black and Momoa are co-starring in A Minecraft Movie. Gunn responded, “I can live with that.” As long as it’s not spoilers on a massive scale, you know, then we're good!
Momoa has been dropping small hints about the character recently, insisting he will look a lot like Lobo in the comics. "This is the role I've always wanted to play," he told ScreenRant. "That's the comic I loved, so I'm really nervous about it. It’s kind of a no-brainer to play this character. It's pretty big. I don't want to give away too much, but I mean, we look pretty dead on, exactly like the character."
Fans of the character can probably see why Momoa was cast, as Lobo is portrayed as a buff, mostly-shirtless biker. However, unlike Momoa, the mercenary is also typically depicted with white skin, red eyes, a handlebar moustache, and long black hair — so it will be interesting to see the actor step into something even more over-the-top than usual.
Supergirl: Woman of Tomorrow will be directed by Craig Gillesipe, written by Ana Nogueira, and star Milly Alcock in the title role. As of now, it’s set to release in theaters on June 26, 2026, as part of the new DCU’s chapter one, titled Gods and Monsters.
Lex Briscuso is a film and television critic and a freelance entertainment writer for IGN. You can follow her on Twitter at @nikonamerica.