Farewell to Arms - original love theme during opening credits and at key moments. Italian atmosphere established by opening of Mendlssohn's Fourth Symphony, "La donna é mobile" from Verdi's Rigoletto and traditional "Santa Lucia". Borrowings from Wagner: "Ride of the Valkyries" during battle scene, brassier treatment of Wagner while Frederic searches for Catherine, music from Tristan and Isolde while Catherine dies in Frederic's arms. (Darby and Du Bois, American Film Music, 1990, p. 13)

Tony whistles "Slaves' Chorus" from Verdi's Nabucco in opening murder scene.