She then launched an acting career in French cinema, beginning with the 1999 film Recto-verso, which was followed by her role as Charlotte in the TV series H in 2000.
Internationally, her best-known role to date has been as the blue-haired, blue-teared, mutant-woman-turning-human, Jill, in the 2004 science-fiction film, Immortel (released in North America as Immortal). In the film, Hardy is dubbed by an English-speaking actress (Barbara Weber-Scaff), except for one piece of dialogue delivered in her French.
Another of her roles was in a 2006 film titled A House Divided, also known as Mount of Olives. The film tells the story of Romi (Eion Bailey), a Jewish American who falls in love with Joleh (Hardy), a Palestinian woman.
She has also had roles in the film Le Souffleur and the short film Dernière chance. In addition, she has made a number of appearances on television.
From 2010-2019, she appeared in a number of further films and TV series, as below. In 2019, she participated in the tenth season of Danse avec les stars, the French version of Dancing with the Stars. She was partnered with professional dancer Christophe Licata. On November 2, 2019, they were eliminated finishing 5th out of 10.
