In the trade, Clémentine Poidatz is a working French actress, one of the faces that hold a cast together from the edges. Of everything here, 'Marie Antoinette' is the title that keeps being brought up, and Comtesse de Provence with it. Add 'Shut In' to the recognizable credits. She started at 24. Roughly 26 credits in 21 years means a rhythm of work most performers never manage.