How Was Working With an International Star in “Two Days, One Night” Different for the Dardennes?
The Dardennes cast Cotillard because they were familiar with her work and felt that she was capable of a great performance characterized by the fragility they were looking for in her role. However, they also took care in undermining the glamorous image she was known for throughout the world. During the month of rehearsals, they would try out new costumes and hairstyles, looking for the simplest and plainest yet natural look possible to make her seem like any other ordinary person.