Christopher Nolan’s Uggs ban is not, apparently, a war on cozy footwear. It is a war on anything that makes an actor look like they have briefly stepped out of ancient Greece, Gotham, or wartime Los Alamos and into a very comfortable airport lounge.

The 55-year-old filmmaker explained the rule during a July 20 appearance on CBS Mornings, where Gayle King asked about one of his more specific on-set habits: actors are not allowed to wear Ugg boots between takes.

Why Christopher Nolan does not want Uggs on set

Nolan said the issue is not the boots, but the reminder they bring with them.

“I want to stay in the moment. I want the actors to stay in the moment,” he told King. “For me, the Ugg boots are a signifier of modernity, absurd though that is.”

That matters more on a Nolan set than it might on a looser production. His films tend to be built around strict worlds, whether that is the dream architecture of Inception, the fractured time of Interstellar, or the historical pressure cooker of Oppenheimer. His upcoming period epic The Odyssey, starring Matt Damon and Anne Hathaway, makes the rule especially easy to understand. Homer did not write many scenes about plush sheepskin slip-ons.

Nolan compared the effect to someone eating chips just off camera.

“There's certain things that just remind you're in the real world, as opposed to the world we're trying to create for the actors,” he said.

The rule is about immersion, not a footwear feud

Nolan made clear he does not have a personal vendetta against Uggs as an object. The problem is practical, or at least practical by the standards of a director trying to keep an entire cast mentally inside a fictional world while surrounded by hundreds of real-world reminders.

“Sometimes actors will turn up, because the footwear hurts, they'll turn up in these big fluffy, comfy slippers,” Nolan said. “The funny thing is, you can be on set with a guy holding a microphone, you've got a giant camera, you've got crew everywhere. But something like that can actually weirdly take you out of reality.”

It is a slightly funny line to draw, given that film sets are not exactly temples of uninterrupted illusion. There are cables, lights, marks on the floor, and people holding reflective boards. Still, Nolan’s point is that some disruptions are part of the machinery, while others puncture the mood in a way that feels more ordinary and more current.

Anne Hathaway learned the policy quickly

Hathaway has already had Nolan’s footwear briefing. During a July 13 interview with USA Today while promoting The Odyssey, she recalled wearing Uggs on one of his sets and receiving a very efficient response.

“I did show up one day with Uggs, and he looked down and went ‘Nope,’” Hathaway said. “I just went ‘No problem!’ And they never came back.”

Hathaway has worked with Nolan more than once, including on The Dark Knight Rises, where she played Selina Kyle. According to Nolan, the Ugg rule became something of an inside joke with her over the years.

Damon, who joined Hathaway for the interview, offered the more compact version of the policy: “He hates Uggs more than anything.”

That may be an overstatement, but it has the useful clarity of a call sheet note.

Emily Blunt compared it to The Devil Wears Prada

Emily Blunt had her own encounter with the ban while working with Nolan in 2022 on Oppenheimer. Speaking on The Late Show with Stephen Colbert in 2024, she joked that Nolan’s reaction had the icy precision of Miranda Priestly from The Devil Wears Prada.

“He has such an issue with Ugg boots. It's a serious problem,” Blunt said. “I walked in wearing them one day, and it was like The Devil Wears Prada. He literally just stared at them. I was like, ‘Chris, come on.’ He goes, ‘Take those off.’”

For actors, the appeal of switching into softer footwear between takes is easy to understand. Costume shoes can be painful, especially during long shooting days. For Nolan, comfort has to compete with staying in character. That is the bargain: fewer fluffy slippers, more uninterrupted make-believe.

And if the cast of The Odyssey needed one more reminder that they were not in the modern world, the absence of Uggs seems to have done the job.