Seydoux's parents are both partly of Alsatian descent. She has three older half-siblings (Marine Bramly, Noé Saglio and Ondine Saglio) from her mother's first marriage, an older sister, stylist Camille Seydoux from her parents' marriage, and a further two paternal half-brothers, Ismaël Seydoux and Omer Seydoux, from her father's marriage to model Farida Khelfa. She had a strict Protestant upbringing, but she is not religious. She was born in Passy, in the 16th arrondissement of Paris, and grew up in Saint-Germain-des-Prés in the 6th arrondissement.
That same year, she also received the Lumières Award for Best Actress for the film Grand Central and, in 2014, she was nominated for the BAFTA Rising Star Award and starred in the films Beauty and the Beast, Wes Anderson's The Grand Budapest Hotel and Saint Laurent. In 2013, Seydoux came to widespread attention when she was awarded the Palme d'Or at the Cannes Film Festival for her role as a lesbian art student in the critically acclaimed film Blue Is the Warmest Colour, along with its film director Abdellatif Kechiche and her co-star Adèle Exarchopoulos. In French cinema, she was nominated for the César Award for Most Promising Actress for a second time for her role in Belle Épine (2010) and was nominated for the César Award for Best Actress for her role as a lady-in-waiting to Marie Antoinette in the film Farewell, My Queen (2012). Since then, Seydoux has appeared in major Hollywood films including Quentin Tarantino's Inglourious Basterds (2009), Ridley Scott's Robin Hood (2010), Woody Allen's Midnight in Paris (2011) and the action film Mission: Impossible – Ghost Protocol (2011). Seydoux first came to attention after she won the Trophée Chopard and received her first César Award nomination, for her performance in The Beautiful Person (2008). She began her acting career in French cinema, appearing in films such as The Last Mistress (2007) and On War (2008).
Léa Hélène Seydoux-Fornier de Clausonne ( French: ( listen) born 1 July 1985) is a French actor.