 In 1914, Leblanc and Maeterlinck left Grasse for a villa near Nice and the following year Leblanc portrayed the role of Lady Macbeth in a French film adaptation of William Shakespear's "Macbeth".The couple stayed together four more years, but the relationship ended in 1918 when it became clear that he was involved with another woman, the actress Renée Dahon.After her relationship with Maeterlinck ended, Leblanc remained active on the stage within his plays throughout the 1920s, although her singing career was pretty much over.