The actress is due to star in the new film by Jacques Audiard, which is a follow-up to the film A Prophet.
According to Variety, the film has a budget of $22million and is set to be one of the biggest films from France this year.
Audiard is working with Thomas Bidegain once again on the screenplay for the new film after working with him on A Prophet.
Others starring in the movie include Matthias Schoenaerts, Celine Sallette and Bouli Lanners.
Cotillard has previously starred in movies such as Inception and has recently been filming for her role in The Dark Knight Rises.