Superman star David Corenswet talked about a hilarious blooper from the sets of the James Gunn directorial

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James Gunn’s Superman continues to dominate conversations, not only for its box office performance but also for the hilarious and candid moments shared by the cast behind the scenes. In a recent interview with People Magazine, David Corenswet, who stars as the new Clark Kent, opened up about a surprising and unfiltered blooper involving his co-star Rachel Brosnahan, who plays Lois Lane. The moment, according to Corenswet, was so unexpectedly powerful that it made him curse at her mid-scene—completely unscripted and involuntary.

Corenswet explained that during one of their scenes together, Brosnahan delivered a line with such impeccable timing and emotional punch that he blurted out, “Oh, f*** you,” right in the middle of the take. The outburst caught everyone—cast, crew, and even Brosnahan—off guard. He admitted it wasn’t out of anger, but more in stunned admiration, almost as if he had been emotionally ambushed by her performance. “She made me curse at her,” he said, laughing. “It was a shock to all of us.”

The two actors have frequently praised each other in various press appearances. Corenswet credited Brosnahan for being sharp and fearless, always bringing something fresh and unexpected to her performance. “It’s not easy to surprise your scene partner,” he noted. For her part, Brosnahan also had warm words for Corenswet, admiring how he explored different shades of his character and maintained his intensity throughout the shoot.

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This wasn’t the only time a string of profanity found its way into the production. Director James Gunn, known for his unfiltered and blunt working style, also admitted to dropping a few expletives on set—particularly directed at Corenswet. In a separate interview with GQ, Gunn shared that he once told the actor to “shut the f*** up” during filming, revealing that Corenswet tends to ask a lot of questions while working. However, the exchange was in good spirits, and Gunn emphasized that Corenswet is easygoing and never takes things personally. The two reportedly share a strong rapport, filled with both humor and creative respect.

As Superman continues its theatrical run, these behind-the-scenes stories only add to the film’s growing appeal. While fans flock to see the fresh take on the iconic hero, the camaraderie and honest moments among the cast and crew make it clear that this reboot isn’t just a critical step for DC—it’s a passion project with genuine chemistry at its heart.