Romeo and Juliet sometimes been judged unfavourably because of its perceived liberties with Shakespeare; however, Bellini and his librettist, Felice Romani, worked from Italian sources—principally Romani's libretto for "Giulietta e Romeo" by Nicola Vaccai—rather than directly adapting Shakespeare's play. Among later operas, there is Heinrich Sutermeister's 1940 work "Romeo und Julia". "Roméo et Juliette" by Berlioz is a "symphonie dramatique", a large-scale work in three parts for mixed voices, chorus, and orchestra, which premiered in 1839. Tchaikovsky's "Romeo and Juliet" Fantasy-Overture (1869, revised 1870 and 1880) is a 15-minute symphonic poem, containing the famous melody known as the "love theme". Tchaikovsky's device of
Romeo and Juliet (1936 film) starred Katharine Cornell as Juliet, Basil Rathbone as Romeo, Brian Aherne as Mercutio, and Edith Evans as The Nurse. Rathbone is the only actor from the 1934 revival to appear in the film, albeit in the role of Tybalt rather than Romeo. On the stage Tybalt was played by nineteen year old Orson Welles. Thalberg's stated intention was "to make the production what Shakespeare would have wanted had he possessed the facilities of cinema." He went to great lengths to establish authenticity and the film's intellectual credentials: researchers were sent to Verona to take photographs for the designers; the paintings