A tech billionaire’s secret survival bunker inspired writer-director Florian Zeller’s latest film, which premiered at the Venice Film Festival on Tuesday, providing a warning ⁠about isolation, power, and a world controlled by a wealthy few.

Starring real-life husband-and-wife team Javier Bardem and Penélope Cruz, Bunker follows a renowned architect who is asked to design a luxury shelter in Hawaii for a wealthy client convinced that society is set to implode.

As the architect becomes increasingly seduced by the project, tensions emerge in his marriage, and a seemingly minor dispute with a neighbour becomes increasingly ominous.

Director Florian Zeller at the premiere of his film Bunker at the Venice International Film Festival, on 8 September 2026, in Venice. (Photo By Stefano Spaziani/Europa Press via Getty Images)
The Bunker writer-director Florian Zeller at the Venice Film Festival – “I thought it was a fascinating paradox because this man, who made a fortune based on the idea of connecting people together, was working on a Plan B to isolate ‌himself from the rest of the world”

Zeller, who won an Oscar for Best Adapted Screenplay for The Father in 2021, said the idea came from reports he read about a prominent entrepreneur building a secret hideaway.

“I thought it was a fascinating paradox because this man, who made a fortune based on the idea of connecting people together, was working on a Plan B to isolate ‌himself from the rest of the world,” the ⁠French director told reporters.

Power in the hands of a select few

The story evolved into a broader reflection on a society where people increasingly isolate themselves and where everything from food to friendship is delivered via screens.

“The more I was thinking about it, the more I realised that all of us, to some degree, are tempted to live in a bunker,” Zeller said.

“Not a real bunker, of course, but an invisible bunker.”

The film also serves as a ‌critique of an economic system in which a handful of people exert enormous influence, the director said.

“Very few people own almost everything. They own our privacy, they own our email addresses, they own the platforms ⁠on which we communicate. And that’s a real issue that we have to question.”

Zeller said casting Bardem and Cruz together added another dimension ‌to the story.

“I thought it would be a unique way to capture something special as a real ⁠couple, to blur ‌the line between reality and fiction,” he said.

Cruz told reporters that she was drawn to the project partly because it explored her own concerns.

Javier Bardem and Penélope Cruz attend the red carpet of Bunker during the 83rd Venice International Film Festival on 8 September, 2026. (Photo by Franco Origlia/Getty Images)
Javier Bardem and Penélope Cruz at the Venice Film Festival – Director Florian Zeller saw their casting in Bunker as “a unique way to capture something special as a real ⁠couple, to blur ‌the line between reality and fiction”

“I believe that the people making the biggest decisions in the world can probably be counted on the fingers of two hands, and sometimes even one hand would be enough,” she said.

“That degree ⁠of manipulation seems very sad to me, and events are moving so fast that it feels as though there is hardly any time to react.”

Bardem ⁠said he had brought nothing from his own marriage to Cruz into the film.

However, his wife acknowledged one thing – that the film had allowed them to speak together in Spanish, as they do in real life, while swapping to English for their relations with the outside world.

“Even if you look back 10, 15 years ago, it was always so challenging to get financiers to accept something like that,” she said.

“But… this is what kids grow up [being] used to now, seeing original films with people speaking the language they are supposed to speak.”

Bunker ‌is one of 21 films competing for Venice’s Golden Lion award, which will be presented on Saturday.

Source: Reuters

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