In his treatment of the classics, Stanislavski believed that it was legitimate for actors and directors to ignore the playwright's intentions for a play's staging. One of his most important—a collaboration with Edward Gordon Craig on a production of "Hamlet"—became a landmark of 20th-century theatrical modernism. Stanislavski hoped to prove that his recently developed 'system' for creating internally justified, realistic acting could meet the formal demands of a classic play. Craig envisioned a Symbolist monodrama in which every aspect of production would be subjugated to the protagonist: it would present a dream-like vision as seen through Hamlet's eyes.