Daughter of director Jacques Doillon and actress Jane Birkin, half-sister of
Charlotte Gainsbourg, half-sister in law of Yvan Attal, Lou was born in the French
movie industry. She had a rebellious adolescence, and started her
acting career as her mother's daughter in Kung-Fu Master! (1988). Then, her father
offered her her first great role in a movie, it was Trop (peu) d'amour (1998), and she
also played in Mauvaises fréquentations (1999). She became a model because of her atypical
beauty and is now a star in the French and European movie
industry.
Gave birth to her 1st child at age 19, a daughter Marlowe Jack Tiger Mitchell in July 2002. Child's father is her now ex-boyfriend, Thomas-John Mitchell.