 After twenty-one years with the company, he returned to Montreal in 1965 and accepted the invitation of Ludmilla Chiriaeff to become co-artistic director and resident choreographer of Les Grands Ballets Canadiens.Nault's best-known work is probably his spectacular production of "Casse-Noisette" ("The Nutcracker"), which has been performed annually during the Christmas season in Montreal for many years.Other major works include "Carmina Burana", created in 1962 and given a new production in 1966 by Les Grands Ballets Canadiens for the company's season during Expo 67, and the hugely successful rock ballet "Tommy", created in 1970 and based on the rock opera by The Who.