Romeo and Juliet on screen the story have also been filmed, most notably "West Side Story", Prokofiev's ballet "Romeo and Juliet" and "Romanoff and Juliet". Several theatrical films, such as "Shakespeare in Love" and "Romeo Must Die", consciously use elements of Shakespeare's plot. Producer Irving Thalberg pushed MGM for five years to make a "Romeo and Juliet", in the face of the studio's opposition: which stemmed from Louis B. Mayer's belief that the masses considered the Bard over their heads, and from the austerity forced on the studios by the depression. It was only when Jack L. Warner announced his intention to film Max Reinhardt's
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