The highly anticipated Superman reboot, directed by James Gunn, made a splash at CinemaCon 2025, unveiling extended footage and revealing surprising behind-the-scenes stories. While the world marveled at David Corenswet's portrayal of the Man of Steel and Rachel Brosnahan's Lois Lane, it was Gunn's personal anecdote that stole the show – the unlikely influence of his own dog, Ozu, on the creation of Krypto.

Gunn shared a hilarious tale of his rescue dog, describing Ozu as "the worst dog you could possibly imagine." The director recounted Ozu's destructive tendencies, from chewing up shoes and furniture to the ultimate canine transgression – annihilating an $8,000 laptop. This wasn't just playful nipping; Ozu's antics included a persistent campaign of foot-biting, even leaping onto kitchen counters to reach his target. Gunn's humorous retelling painted a vivid picture of chaotic dog ownership, where self-preservation involved retreating to the safety of a kitchen counter.

But it was amidst this canine mayhem that inspiration struck. Gunn joked, "And I thought, 'Oh my God, what if this dog had superpowers? That'd be fun!'". This lighthearted observation perfectly encapsulates the essence of Krypto's character in the new film – a mischievous, slightly destructive, but ultimately lovable companion to Superman.

The CinemaCon presentation didn't just focus on the humorous side of the production. Attendees were treated to an extended look at the film's footage, showcasing Superman's injuries and the high-tech Fortress of Solitude where cape-clad medical robots attend to him. The sneak peek also highlighted other key characters, including Nicholas Hoult as Lex Luthor, Isabela Merced as Hawkgirl, and Nathan Fillion as Guy Gardner, offering a glimpse into the vibrant and exciting world Gunn has created.

The contrast between Gunn's relatable struggles with his dog and the grand spectacle of the Superman film highlights the director's ability to infuse his personal experiences into his work, making the film feel both epic and intimately human. The footage, featuring Superman's impressive flight sequences and a glimpse at the captivating villainous Lex Luthor, certainly piqued the interest of those in attendance. The film is poised to create a new legacy for Superman, one that is both grounded in humanity and infused with a touch of playful chaos thanks to the unexpected influence of Ozu.

Superman soars into theaters on July 11th.