Vanessa Paradis: Heartbreaker is an old-style film
Speaking to the Observer, the actress said she first read the script with her boyfriend actor Johnny Depp, star of the Pirates of the Caribbean franchise, and both were very impressed with it.
"Even when I was reading the script, my partner said, 'This is amazing, this could be great'."
She added: "It reminded us of the best old films - Cary Grant, Audrey Hepburn. And Pascal Chaumeil was directing, so I knew I wanted it."
Paradis said the script combined the "best of the French and the British types of these films".
Telling the story of a brother and sister who run a business designed to break up relationships, the film also stars Romain Duris and Julie Ferrier.
Paradis is also set to appear in A Monster in Paris and Cafe de Flore over the next year.