After marrying a successful Parisian writer known commonly as “Willy” (Dominic West), Sidonie-Gabrielle Colette (Keira Knightley) is transplanted from her childhood home in rural France to the intellectual and artistic splendor of Paris. Soon after, Willy convinces Colette to ghostwrite for him. She pens a semi-autobiographical novel about a witty and brazen country girl named…