Hopscotch (film) describes bullets flying and even bombs exploding. There is also the aria "[[Largo al Factotum]]" from the opera [[The Barber of Seville]] by [[Gioachino Rossini]]. Matthau sings this as he passes a border checkpoint. The words to the aria explain how everyone is looking for the barber, and he moves fast like lightning. Kendig has the aria "[[Un bel dì vedremo|Un Bel Dì Vedremo]]" ("One Beautiful Day") from [[Madame Butterfly]] by [[Giacomo Puccini]] playing loudly on the stereo as the FBI and CIA shoot up Myerson's wife's house. The operatic contrapunto adds a surreal air of ironic justice to the
Giacomo Puccini named Ferdinando Fontana. Puccini and Fontana agreed to collaborate on an opera, for which Fontana would provide the libretto. The work, "Le Villi", was entered into a competition sponsored by the Sozogno music publishing company in 1883 (the same competition in which Pietro Mascagni's "Cavalleria rusticana" was the winner in 1889). Although it did not win, "Le Villi" was later staged at the Teatro Dal Verme, premiering on 31 May 1884. G. Ricordi & Co. music publishers assisted with the premier by printing the libretto without charge. Fellow students from the Milan Conservatory formed a large part of the orchestra.