How James Gunn Modeled Superman’s Dog Krypto After His Own Pet

About three years ago, the director James Gunn was trying to figure out the arc of what would become his new blockbuster “Superman.” Then he adopted a dog.

He named the scruffy rescue Ozu, after the Japanese filmmaker known for his serene works. At about 8 months old, Ozu the dog was not at all peaceful. After surviving a hoarding situation, Ozu was fearful of humans and intensely destructive. He chewed up furniture, shoes and even a $10,000 computer. He also ate one of Gunn’s wife’s tampons out of a wastebasket, necessitating a trip to the vet. Gunn realized that if Ozu had been superpowered, the damage would have been even worse.

“It was where the movie came together for me,” he said in a video call.

Gunn decided that his version of Superman would have not just a dog, but a bad dog who could fly. He wrote the opening sequence in which Superman (David Corenswet), defeated for the first time ever, calls out to the canine Krypto to help drag him to the Fortress of Solitude. Krypto — who, like Ozu, is poorly behaved — jumps all over his master, seemingly causing more pain before doing his duty.

But Ozu served as more than just inspiration. Gunn’s pup also became the physical model for Krypto, who is computer-generated so he can do things like soar through the sky and attack villains. Krypto is a little bigger than Ozu and has white fur instead of gray, but otherwise he’s a dead ringer.