The daughter of actress Marlène Jobert, Green performed in theatre before making her film debut in The Dreamers (2003), which generated controversy over her numerous nude scenes. She achieved greater fame for her parts in Kingdom of Heaven (2005), and in the 2006 James Bond film Casino Royale, for which she won a BAFTA. She has also modeled for numerous brands.
Eva Green was born in Paris, the daughter of French actress Marlène Jobert and Swedish dentist Walter Green. She grew up in the 16th arrondissement of Paris. She is of Algerian, Turkish, Swedish, and Spanish descent. Green has a fraternal twin sister named Joy, who was born two minutes earlier than she was. Green described her family as "bourgeois", and says that her sister is very different from her. Green is a natural dark blonde; she dyed her hair black aged 15. French-Swedish actress Marika Green is her aunt.
Green was raised in France, and spent some time in Ramsgate, London and Ireland. Her school was English-speaking. Green was quiet at school, and developed an interest in Egyptology when she visited the Louvre at age seven. Green aspired to become an actress at age fourteen, when she saw Isabelle Adjani in The Story of Adele H.. Jobert initially feared the effect an acting career would have on her sensitive daughter, but she soon supported her ambitions.
Green considers herself nerdy: "When people first meet me, they find me very cold. I keep myself at a distance, and I think that's why I'm so drawn to [acting]. It allows me to wear a mask." She moved to Primrose Hill, London in mid-2005, She prefers the "village-like" atmosphere of the London neighbourhood: "I feel more centred when I'm [there]." She lives alone, jokingly referring to her border terrier, Griffin, as her "husband". She is an atheist, having not been raised to follow any religion. She has dated New Zealand actor Marton Csokas since she met him on the set of Kingdom of Heaven. For three years their relationship was a long distance one, until he moved from Australia to London to live with her.
She has no particular fitness regimen, because, "I'm French and I'm lazy, which means I smoke and I don't exercise", though she does run and she practices pilates. Green finds dieting too stressful. She thinks of herself as an international actress: she can speak both her native French and English fluently, and is also learning Japanese as well as perfecting an American accent.
Green's favourite film is Cries and Whispers, and she is a fan of directors François Truffaut, Ingmar Bergman, Tim Burton, Lars von Trier, David Lynch, and David Fincher. She admires the actresses Lauren Bacall, Marlene Dietrich, Bette Davis, Jeanne Moreau, Cate Blanchett, Juliette Binoche, and Helena Bonham Carter. She credits Blanchett and Kirsten Dunst as her fashion influences, describing her own taste as, "bright pink lipstick, hot pink or geisha colors. Make up is allowed to be a bit weird, I feel." Her favourite artists are Gustav Klimt and Egon Schiele, and she is a keen museum visitor; she particularly likes Chinese and Indian architecture, and framed displays of butterflies and other insects. Green enjoys music, listening to film soundtracks and classical music when preparing for roles, and she plays the piano.