Natascha McElhone: The Truman Show, Californication, and playing Sherlock's mother

British actress Natascha McElhone has worked alongside Robert De Niro, Brad Pitt, Jim Carrey and George Clooney, and spent seven seasons on Californication opposite David Duchovny. Her latest role is Cordelia Holmes, mother to a young Sherlock, in Amazon Prime's new series Young Sherlock, directed by Guy Ritchie and starring Hero Fiennes Tiffin. She joins Culture 101 to discuss the show, her Kiwi connections and a cat named Chekhov.