Christopher Plummer: Christopher Plummer. Actor: Beginners. Legendary actor Christopher Plummer, perhaps Canada's greatest thespian, delivered outstanding performances as Sherlock Holmes in Murder by Decree (1979), the chilling villain in The Silent Partner (1978), the iconoclastic Mike Wallace in The Insider (1999), the empathetic psychiatrist in A Beautiful Mind (2001), the kindly and clever mystery writer in Knives Out (2019), and as Leo Tolstoy in The Last Station (2009). It was this last...