She is the daughter of Jean-Claude Cotillard, actor, director and also the founder of theatre group ‘Cotillard’ and teacher at ‘Ecole Supérieure d’Art dramatique’ in Paris.
Her mother Niseema Theillaud is an actress, director, and teacher.
She also studied from Japanese Noh theatre to the Commedia Dell’Arte about speech, dance, mime and movement under Nicole Merouze.
Marion began her acting career as a child artist in her father’s plays.
She then starred on the 2004 film A Very Long Engagement and was called upon to act on 2007 in La Vie en Rose.
She has since appeared in several other hit films like Nine, Inception, and Midnight in Paris, Rust and Bone, One Night Two Days, The Immigrant etc.
They have two children together and its a boy and younger one is a girl.
She went to Drama at Conservatoire d’Art Dramatique in Orléans, France and graduated in 1994.There is no any rumor and controversy related to her personal life and professional career.Marion has a slim body type with a height of 5 feet 6.5 inches and weighs 57 kg.Julien Rassam was the boyfriend of Marion on 1998 and the couple stayed together until 2000.The pretty actress Marion has a net worth of a whopping 15 million dollars for her acting credits and must also earn a huge salary too.