Matthias Schoenaerts (“Rust and Bone,” “The Mustang”), Makita Samba (“Paris, 13th District,” “Furcy,” “Kika”) and Marton Csokas (“The Equalizer,” “Resurrection,” “Asylum”) are joining Halle Berry in “Fleur,” which begins production this week in Paris. Written and directed by Ellie Foumbi (“Our Father, the Devil”), “Fleur” tells the story of a New York housewife (Berry) who flees America and her husband of 30 years (Csokas) to reinvent herself in Paris as Fleur, an upscale escort and dominatrix