Coppélia, George Balanchine’s lighthearted romantic comedy of mistaken identity, returns to delight audiences March 21–31. Legendary ballerina Alexandra Danilova helped Balanchine stage the ballet in 1974 from her own recollections of Marius Petipa’s 1884 production. Coppélia is based on the libretto by Charles Louis-Étienne Nuitter, after E.T.A. Hoffmann’s Der Sandmann. Dr. Coppélius is a toy-maker and magician who builds a life-like doll named Coppélia that he treats like a daughter. The beautiful doll is so realistic that Franz is smitten and tries to win her attention even though he is engaged to Swanhilda. Jealous and frustrated, Swanhilda sneaks into Dr. Coppélius’ workshop and impersonates the doll, leading Dr. Coppélius to believe that Coppélia has indeed come to life. Coppélia is performed to a score by Léo Delibes and features more than 24 Boston Ballet School students in Act III.