Watch FMovies. As the fates of a spirited young woman, her fiancé and their idealistic friend intertwine during the Napoleonian invasion, their lives - like every Russian’s - are about to change forever. Based on Leo Tolstoy’s epic novel, Prokofiev’s opera portrays the tribulations of Russian society as Napoleon’s armies edge closer to the country’s borders. Monumental in scale, his production has a cast of over 400 with 70 principal singers and a massive chorus on stage.