Pretty Things (2001)

In Les Jolies choses (2001), Marion Cotillard plays two characters, twin sisters Marie and Lucie, whose radically different lifestyles overlap when one of the sisters dies. The surviving sister decides to investigate her late sister’s world and is plunged into a hothouse of sex, drugs, and power-hungry megalomaniacs. Cotillard takes it doggy-style and later, lying in bed, gives us a nice long view of the butterballs.