James Gunn Reveals Why Superman’s Red Trunks Matter—and Why Everyone Fears Him in the New DCU

James Gunn on Superman’s public image in the new DCU has taken center stage as the release of Superman nears, with Gunn and lead actor David Corenswet explaining how the hero’s famous red trunks play into public perception and why the world in the new DC Universe responds to him with fear and awe. Both creators discussed their thought process in recent interviews, highlighting how Superman’s costume and his approach to his extraordinary powers are meant to alter how he is viewed by everyone around him.

The Thinking Behind Superman’s Costume Choices

James Gunn, known for directing the upcoming Superman film, and actor David Corenswet both addressed the perennial debate over Superman’s red trunks, a costume detail that has sparked conversations since the character’s inception. Gunn reportedly spent considerable time considering whether to include the red trunks, seeking insight from Man of Steel and Justice League director Zack Snyder, before ultimately being persuaded by Corenswet’s perspective.

Corenswet explained to Fandango that the trunks are a deliberate element in Superman’s appearance, serving to soften his intimidating presence. In the actor’s words,

“undermine how powerful he really is,”

—David Corenswet, Superman Actor. According to Corenswet, the trunks may even look slightly absurd, but that is exactly the point: by incorporating an element that is almost comical, Superman appears less severe to the public.

James Gunn
Image of: James Gunn

Superman’s Power and the World’s Reaction

As Gunn sees it, the ramifications of Superman’s appearance go beyond simple aesthetics. The director emphasized that the new DCU portrays Superman as an open alien, with unparalleled abilities on display. Gunn said,

“In this version of the DCU, everyone knows he’s an alien,”

—James Gunn, Writer/Director. He continued,

“He shoots beams out of his eyes, he can blow things down with his breath, he’s sort of this terrifying creature. And David saying that was like… But he really likes kids, and human beings, and people. He wants kids not to be afraid of him. And so that was the thing that made me decide to keep the trunks.”

—James Gunn, Writer/Director. This perspective shaped the final design choices for Superman’s costume, aiming to bridge the gap between his superhuman power and the human world he wants to protect.

Superman’s Abilities Displayed in Upcoming Film

With the premiere approaching, audiences are getting glimpses of Superman’s extreme strength and powers in recent trailers. The latest footage showcases Clark Kent—Superman’s alter ego—demonstrating the full extent of his abilities, such as using heat vision, lifting an entire skyscraper, and traveling deep into space. These intense demonstrations of power reinforce the need for Superman’s softened image, echoing Gunn and Corenswet’s discussions about making the hero approachable despite his overwhelming abilities.

What This Means for Superman’s Legacy in the DCU

James Gunn’s decision to keep the red trunks and openly acknowledge Superman’s alien nature marks a shift in how the character will be perceived in the new DC Universe. With public opinion playing a substantial role in this adaptation, Superman’s actions and appearance are designed to inspire rather than intimidate. The movie’s direction—shaped by David Corenswet’s portrayal, advice from Zack Snyder, and input from key figures like Lois Lane and Clark Kent—seeks to blend formidable power with humane vulnerability. Superman is set to return to theaters on July 11, promising a renewed exploration of how heroes are seen in the modern world and how their legacy evolves in response to new challenges.