Green was raised in France, and spent some time as well in Ramsgate, London and Ireland.  Her school was English-speaking. Green was quiet at school, and developed an interest in Egyptology when she visited the Louvre at age seven. Green aspired to become an actress when she saw Isabelle Adjani in The Story of Adele H. at the age of fourteen. Jobert initially feared the effect an acting career would have on her sensitive daughter, but she soon supported her ambitions.