Marion Cotillard (born September 30, 1975) is a French actress who has appeared in almost 40 film and television productions since 1993.

Born into an acting family, Cotillard started on the stage as a child and during her teens progressed from roles in television to cinema. By the end of the 1990s she had achieved notability as a French cinema actress in such films as Arnaud Desplechin's My Sex Life... or How I Got Into an Argument (1996) and Taxi (1998), and was seen by a wider audience in such films as Big Fish (2003), A Very Long Engagement (2004), for which she received a César Award for Best Supporting Actress, and A Good Year (2006).