Léa Seydoux's Real Name: Léa Hélène Seydoux-Fornier de Clausonne

Quick answer: Léa Seydoux's documented full name is Léa Hélène Seydoux-Fornier de Clausonne. Encyclopaedia Britannica records that form and gives her birth date as July 1, 1985, in Paris, France. Variety, in a 2013 profile, identifies her as the French actress who won the Palme d'Or at Cannes for Blue Is the Warmest Color (Encyclopaedia Britannica; Variety).

Real name and early life

Britannica lists Léa Hélène Seydoux-Fornier de Clausonne and names her parents as Valérie Schlumberger, a costume designer and philanthropist, and Henri Seydoux, a businessman. Her grandfather Jérôme Seydoux chaired Pathé, and her great-uncle Nicolas Seydoux chaired Gaumont, a family connection Variety also notes. After her parents divorced, documentary filmmaker Farida Khelfa became her stepmother, Britannica says. She studied opera as a teenager, then enrolled in the experimental theater program Les Enfants Terribles. Variety says she attended only a few acting sessions before her breakthrough, rather than a full conservatory course.

Career highlights

Early French roles included Mes copines (2006; Girlfriends) and Une Vieille Maîtresse (2007; The Last Mistress). Her breakthrough came in Christophe Honoré's La Belle Personne (2008; The Beautiful Person), Variety also highlights. She appeared in Quentin Tarantino's Inglourious Basterds (2009) and, as Variety notes, in Midnight in Paris and Mission: Impossible — Ghost Protocol. In 2013 she and Adèle Exarchopoulos shared the Palme d'Or for Abdellatif Kechiche's La Vie d'Adèle (Blue Is the Warmest Color); Britannica notes that she is among the first five women to have won that prize, and later reported that Seydoux and Exarchopoulos described the shoot as difficult and said they would not work with Kechiche again. Variety also noted upcoming work in La Belle et la Bête (Beauty and the Beast) and Wes Anderson's The Grand Budapest Hotel (2014). She played psychologist Madeleine Swann, a partner of Daniel Craig's James Bond, in Spectre (2015) and No Time to Die (2021). Later credits include Yorgos Lanthimos's The Lobster (2015), Anderson's The French Dispatch (2021), and Denis Villeneuve's Dune: Part Two (2024). She has continued to work in French-language films such as Un Beau Matin (2022; One Fine Morning) and La Bête (2023; The Beast), Britannica records.

Name notes for searchers

Léa Hélène Seydoux-Fornier de Clausonne is the documented full name; she is known professionally as Léa Seydoux. Searchers looking for Madeleine Swann in the Bond films, or for the Palme d'Or-winning star of Blue Is the Warmest Color, are usually aiming at the same person.