Anaïs Demoustier has had since childhood a passion for acting. She lands in 2003 her first important role, in Time of the Wolf, a family drama directed by Michael Haneke. Her career now launched, she follows up with supporting roles before starring in Be Good, as a young woman in search of her lost love. She is twice nominated to the Césars, in the category Best Feminine Hopeful, in 2001 for Grown-ups and in 2011 for Living on Love Alone, thus confirming a promising career. The same year, she equally appears in Dear Prudence, co-starring Léa Seydoux.