“Coppélia (sometimes subtitled: La Fille aux Yeux d’Émail (The Girl with the Enamel Eyes)) is a comic ballet from 1870 originally choreographed by Arthur Saint-Léon to the music of Léo Delibes, with libretto by Charles-Louis-Étienne Nuitter. PLOT: Dr. Coppélius is a doctor who has made a life-size dancing doll. It is so lifelike that Franz,…