Superman might as well have flown through exploding stars, bench-pressed the weight of the Earth for five straight days, and once sneezed away an entire solar system. He has survived black holes, punched time itself, and won arguments with Batman, which might be the hardest feat of all. Faster than the Flash on a deadline and stronger than a caffeine-charged Hulk, Superman remains the peak of comic-book perfection. And yet, for all his power, there is one thing he still cannot do easily.

David Corenswet has informed the public that the suit lacks a zipper. Nature, it seems, does not yield to even the Man of Steel.

During BuzzFeed’s Puppy Interview with the cast of Superman, director James Gunn asked actor David Corenswet how comfortable the new suit was. Corenswet responded, “It grew to be comfortable,” before revealing a particularly human design flaw. “There is no zipper to pee. We tried putting a zipper in,” he said, adding with a laugh, “And especially with the trunks we thought for sure we were going to be able to hide a zipper.” The anecdote instantly charmed fans.

The conversation began when the cast was asked about working with costume designer Judianna Makovsky and whether they had any costume-related secrets. Corenswet’s honesty struck a humorous chord, exposing how even the most iconic superhero outfits can be impractical. His admission reminded viewers that, beneath the cape and Kryptonian legacy, the man in the suit still faces extremely Earth-bound struggles, particularly in the realm of wardrobe engineering.

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This might be a hilarious anecdote about the Superman suit, but it also highlights David Corenswet’s commitment to the role, even if it meant enduring heroic levels of bladder control.

David Corenswet prepared for Superman with the focus of someone auditioning for Mount Olympus. He ate over 4,000 calories daily, trained rigorously, and worked closely with a stunt team to perform many of his own action scenes. To portray Clark Kent, he studied All-Star Superman and observed how Christopher Reeve subtly altered his posture to signal the switch between identities. He even found unexpected inspiration in his brother-in-law, a 6'8", 270-pound gentle giant who helped shape the hero’s quiet strength.

James Gunn described Corenswet as having an "innate kindness and decency", which, in Superman terms, is basically winning the genetic lottery. A Juilliard-trained actor with a track record of layered performances even before donning the cape, Corenswet brings both humility and grandeur to the role. He looks like a superhero, moves like one, and somehow still manages to blink like a farm boy from Kansas. That combination cannot be taught, it simply lands like a cape on the right shoulders.

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