From 1985 to 2001, Marceau had a relationship with director Andrzej Żuławski.
Their son Vincent was born in July 1995.
In 2001, Marceau separated from Żuławski and began a six-year relationship with producer Jim Lemley.
They have a daughter, Juliette (born June 2002 in London).

Marceau also had a relationship with Christopher Lambert beginning in 2007, with whom she appeared in the films Trivial and Cartagena.
They announced their separation on 11 July 2014.

Marceau is a classically trained cellist, as seen in the 1999 film Lost and Found.
She is bilingual (French and English).
From 1985 to 2001, Marceau had a relationship with director Andrzej Żuławski. Their son Vincent was born in July 1995. In 2001, Marceau separated from Żuławski and began a six-year relationship with producer Jim Lemley. They have a daughter, Juliette (born June 2002 in London).
Marceau also had a relationship with Christopher Lambert beginning in 2007, with whom she appeared in the films Trivial and Cartagena. They announced their separation on 11 July 2014.
Marceau is a classically trained cellist, as seen in the 1999 film Lost and Found. She is bilingual (French and English).
Sophie Marceau