Cannes 2026: Léa Seydoux, star of The Unknown and Gentle Monster, in 7 facts

By Violaine Schütz, 

translation by Emma Naroumbo Armaing .

Published on 12 February 2024. Updated on 18 May 2026.

Léa Seydoux didn’t envision a career in acting

Although her family is directly linked to the seventh art, the French star didn’t always want to become an actress. As a shy kid, Léa Seydoux envisioned a career as an opera singer. The woman who, in the 2000s, flashed her breasts on camera in a campaign for American Apparel didn’t dream of becoming an actress when she was younger. The melancholic heroine of Christophe Honoré’s 2008 film The Beautiful Person, starring French Prime Minister Gabriel Attal, has shared in several interviews, including one with W Magazine, that it was after she fell in love with an actor that she decided to be on-screen. She found his life incredible and wanted to live a similar experience.

It was also to seduce him that she got it into her head to do the same job as him. In the end, she didn’t get involved with the (unnamed) actor, but one can argue that she got her sweet revenge by becoming far more famous than he was. In a recent interview with Télérama, the actress declared: “It’s a fairly recent idea for me to finally accept myself as an actress.” Today, the magnetic Léa Seydoux can boast of starring in productions directed by Rebecca Zlotowski, Benoît Jacquot, Xavier Dolan, Bruno Dumont, and Arnaud Desplechin, with roles that are often troubled and always troubling…

The actress comes from a well-known family in the film industry

Her last name may not ring a bell to those who don’t follow her, but Léa Seydoux comes from a powerful clan in the seventh art. She is the granddaughter of producer Jérôme Seydoux, owner of the major European film production and distribution company Pathé (The Three Musketeers diptych), whose fortune was estimated at 1.4 billion euros in 2023, and the great-niece of Nicolas Seydoux, chair of the Supervisory Board of the French studios Gaumont.

In an interview with Deadline, the actress explained her status: “I come from this family deeply rooted in the cultural industry, yet I was completely sidelined as a child. I was an outcast, with very bad grades at school, and I’d always felt a bit like an orphan, who doesn’t fit into any box.”

One of the few James Bond girls to appear twice in the saga

In addition to being one of the greatest stars of French cinema, Léa Seydoux has also seduced international audiences. Louis Vuitton’s muse embodies the French touch and elegance all around the world. She starred in Quentin Tarantino’s Inglourious Basterds (2009), Ridley Scott’s Robin Hood (2010) and Brad Bird’s Mission: Impossible – Ghost Protocol (2011). She also appeared in features directed by Woody Allen (Midnight in Paris in 2011), Wes Anderson (The French Dispatch in 2021), David Cronenberg (Crimes of the Future in 2022) and Yórgos Lánthimos (The Lobster in 2015).

International audiences know her best for her performances in two James Bond films — Spectre (2015) and No Time to Die (2021) starring Daniel Craig. She even went down in the history of the franchise thanks to her role as Madeleine Swann, a psychologist. She played that role twice. Aside from British actress Eunice Gayson in the 1960s, few actresses have played the same role twice in a row in any James Bond film. For the producers, this choice is linked to Léa Seydoux’s “unique charm”.

The difficult shooting of Blue is the Warmest Colour

As part of the #MeToo movement that liberates women’s voices, Léa Seydoux had already mentioned the frightening Harvey Weinstein in The Guardian. She also shared how trying the shooting of Blue is the Warmest Colour (2013) was. For her, but also for her co-star Adèle Exarchopoulos, who both won the Palme d’Or at the Cannes Film Festival for their respective performances.

In 2018, in the columns of Elle Magazine, the discreet French star explained: “Five years ago, when I said that Adèle [Exarchopoulos] and I had been mistreated on the set of Blue is the Warmest Colour, well-known actresses criticized me and advised us to shut up if we had any hope of having a career in the industry. Abdellatif Kechiche immediately shifted the main issue to make it look like a social class disagreement. If I complained, it was because I was part of the bourgeoisie, because I was a spoiled little girl… It’s unbearable! There’s no justification for torturing people, and it hasn’t made the film any better. I think our testimony would be received with more kindness and understanding today. At least, I hope so.”

The sublime star of Dune: Part Two has a few complexes

In a 2015 interview with Screen Rant, Léa Seydoux shared a surprising confession about her physical appearance. Recently seen in Bertrand Bonello’s The Beast and in Denis Villeneuve’s Dune, Part Two (2024), Léa Seydoux gave a surprising insight about her physical appearance.

Everyone praises her beauty, enhanced by her pretty dark circles, as well as her acting skills, imbued with great ambiguity and mystery… Yet, the actress didn’t feel femme fatale enough to embody a James Bond girl. “At first, I felt a bit nervous, because I had the impression that maybe I wasn’t beautiful enough or something. But then I realized that it was actually a positive thing. (…) It would be a new film, a new Bond. And that’s why they chose me,” she declared.

She had a terrible experience at the Cannes Film Festival

In May 2024, Léa Seydoux — soon to star in Luca Guadagnino‘s and Leos Carax‘s upcoming projects — walked the Croisette red carpet to present the opening film of the Cannes Film Festival. The film in question was Quentin Dupieux’s The Second Act (2024), in which she starred alongside French actors Raphaël Quenard, Vincent Lindon and Louis Garrel. An opportunity for the television show C à Vous to revisit an unfortunate Cannes memory with her…

She made her comeback to the big screen in Silent Friend in 2026

It may seem hard to believe today, but the actress was once forgotten by the film crew. The event occurred during the famous ‘climb up the stairs’ for the screening of Ridley Scott’s Robin Hood (2010). “They forgot me. The whole cast had already gone up (…) I was young at the time, I didn’t know, it was one of my first film. The screening had already started, and I was still on the carpet,” she explained.

In 2025, the French actress made her major return to the Venice Film Festival with Silent Friend (2025), the latest feature by Hungarian filmmaker Ildikó Enyedi, released in theatres on April 1st, 2026. The synopsis? “In a botanical garden, a tree watches over the world, patiently bearing witness to the passing centuries. 1908 focuses on Grete, who struggles to exist within a society that ignores her. 1972 sees Hannes awakening both to love and to the world of plants. Today, the old tree speaks with Tony in its secret language. Around it, some people search for themselves while others find one another. The tree remains a silent friend, existing within a timescale far greater than theirs.”

The star of the 2026 Cannes Film Festival?

Léa Seydoux will undoubtedly be one of the major figures of the 79th edition of the Cannes Film Festival. The French actress will be on the Croisette for two highly-anticipated features — Gentle Monster and The Unknown. Two projects with very different registers, further cementing her status as a central figure in contemporary cinema, able to move effortlessly between radically different aesthetics and narratives.

The Unknown by Arthur Harari does not have a release date yet. The film will premiere in competition at the 2026 Cannes Film Festival.
Gentle Monster by Marie Kreutzer does not have a release date yet. The film will premiere in competition at the 2026 Cannes Film Festival.