What Superman's pet Krypto owes to director James Gunn's badly behaved rescue dog

Straits Times

20-07-2025

Krypto the superdog (left) in Superman is inspired and modelled after director James Gunn's dog Ozu.
NEW YORK – About three years ago, American writer-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 Yasujiro Ozu, the Japanese film-maker known for his serene works.
At about eight months old, Ozu the dog was not at all peaceful. After surviving a hoarding situation, it was fearful of humans and intensely destructive.
He chewed up furniture, shoes and even a US$10,000 (S$12,800) computer. He also ate a tampon out of a wastebasket , necessitating a trip to the vet.
Gunn realised that if Ozu had been superpowered, the damage would have been even worse.
'It was where Superman the movie came together for me,' he said in a video call. The 58-year-old 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, calls out to the canine Krypto to help drag him to the Fortress of Solitude.
Top stories
Swipe. Select. Stay informed.
Singapore 1 in 3 vapes here laced with etomidate; MOH working with MHA to list it as illegal drug: Ong Ye Kung
Singapore HSA extends hotline hours, launches new platform to report vaping offences
Singapore Tampines regional centre set to get more homes, offices and public amenities
Multimedia How to make the most out of small homes in Singapore
Life US tech CEO Andy Byron resigns after viral Coldplay 'kiss cam' video
Asia From toy to threat: 'Killer kites' bring chaos to Indonesian airspace
Opinion I thought I was a 'chill' parent. Then came P1 registration
Singapore 'God and government are the only things beyond our control,' says Trip.com Group CEO
Krypto – who, like Ozu, is poorly behaved – jumps all over his master, seemingly causing more pain before doing his duty.
Superman, which also stars Nicholas Hoult as the Man of Steel's nemesis Lex Luthor and Rachel Brosnahan as intrepid reporter Lois Lane, is now showing in cinemas.
'The universe we normally see Superman living in in movies is usually this lone, serious superhero and then people and then that's it,' Gunn said. 'This Superman exists in a different sort of universe where there are flying dogs.'
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 grey , but otherwise he is a dead ringer.
Although Gunn's version of Krypto owes everything to Ozu, Krypto has a long history in comic books. He first appeared in 1955, and while he has never shown up in any of Superman's live-action big-screen outings, he was voiced by American actor Dwayne Johnson in the animated film DC League Of Super-Pets (2022).
Gunn does not get deep into Krypto lore in Superman, but he does have plans for him, including a starring role in 2026's Supergirl, which is based on the comic Supergirl: Woman Of Tomorrow (2021 to 2022). Krypto features prominently in that tale.
Because Gunn wanted Krypto to resemble his own pet as closely as possible, the first step involved a 3D scan of Ozu.
Ozu, who is now better behaved than he used to be, 'despised' the process, the film-maker said, explaining: 'He has to stand on this table and then there's a globe of cameras surrounding him. They take pictures and we kind of move him around a little bit, and it gets every angle of him.'
Though Ozu was initially wary of humans, he immediately befriended Gunn's cat, and like any good owner, Gunn had a plethora of videos of his pets acting cute. He handed those over to the visual effects artists.
'I have tons of videos of them playing,' he said. 'In fact, when Krypto is jumping on Superman at the beginning of the movie, that's all based on footage of him playing with my cat.'
Gunn ultimately worked with three VFX companies to develop Krypto, but mainly relied on Framestore, which was also responsible for creating another crucial furry character, Rocket Raccoon, in the director's Guardians Of The Galaxy (2014 to 2023) movies.
With Krypto, the biggest challenge was figuring out how to depict him flying.
'At first, it kept looking like he was running in the air and it looked dumb,' Gunn said, adding: 'It was getting the right amount of motion with his legs and he was flying. It just took a lot of trial and error.'
On set, the actors playing opposite Krypto occasionally just had to imagine he was there, miming as if interacting with a dog.
In other instances, a 'series of very small women' played Krypto, Gunn said. But sometimes, a real dog was present. Her name was Jolene, and they would play the 1973 song by American country legend Dolly Parton every time she arrived.
'She had white fur and we would use that as a reference for the lighting so we knew what a white dog would look like in the area,' Gunn said.
As for the sounds Krypto makes, Gunn once again went back to Ozu and recorded him for reference. But Gunn also did not want to overdo it.
'The sound people know this: It's my pet peeve that every time an animal is on-screen, they make it make a sound. The truth is, dogs are funny because, for the most part, they are Buster Keaton,' said DC Studios' co-CEO, referring to the American silent film star.
As a dog lover, Gunn aimed to make sure the way Krypto cranes his neck, wags his tail or gets easily distracted was portrayed accurately.
The fact that he is terribly behaved makes Superman's loyalty to him all the more impactful in perilous situations, Gunn said.
'Superman is such a compassionate person that he's worried about the dog being scared,' Gunn said. 'That's the thing that upsets him: The dog is scared. And we've only seen the dog give him grief. I think it's really important that Superman is tuned into his own sense of compassion in that way.'
Ozu, meanwhile, seems to have complicated feelings regarding his debut as the model for a superhero. Gunn posted a video on Instagram of Ozu barking at Krypto. This, he said, happened repeatedly during the editing process.
'He comes darting from the other side of the house and runs into the office so he can bark at Krypto,' Gunn said. 'For two years, he barked at Krypto on-screen.' NYTIMES
Superman is showing in Singapore cinemas.