Does Werther or War and Peace have more acts?
War and Peace (opera) War and Peace (Op. 91) (Russian: Война и мир , "Voyna i mir") is an opera in two parts (an Epigraph and 13 scenes), sometimes arranged as five acts, by Sergei Prokofiev to a Russian libretto by the composer and Mira Mendelson, based on the novel "War and Peace" by Leo Tolstoy. Although Tolstoy's work is classified as a novel, the 1812 invasion of Russia by the French was based on real-life events, and some real-life people appear as characters in both the novel and the opera, e.g. Prince Mikhail Kutuzov and Napoleon Bonaparte.
Hallelujah of Love Living Pictures - "War and Peace" (Russian: "Zhiviye kartiny Voyna i Mir", Живые картины - Война и мир) is a Russian-language musical composed by Russian film music composer Alexey Rybnikov based upon the eponymous novel by Leo Tolstoy. The musical has yet to be produced. Scenes from the forthcoming musical were presented by the Alexey Rybnikov Theatre Company in the musical show Hallelujah of Love («Аллилуйя любви») on the stage of the Moscow International House of Music in September 2012.