CHESSY, FRANCE — In the crisp fall air, a certain giddiness overtook the fashion set on the last night of fashion month. Coperni brought fashion editors, buyers and celebrities — who were greeted by Mickey and Chipmunks as waiters passed champagne — to Disneyland Paris.
The brand, designed by Arnaud Vaillant and Sébastien Meyer, showed a collection of brocade blousons, pleather trenchcoats and ruffled booty shorts at the foot of Sleeping Beauty’s Castle. The collection sought to…