Royal Wedding: Idris Elba, Oprah Winfrey, more arrive at Windsor Castle

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Actors like Idris Elba and Oprah Winfrey arrive at Windsor Castle for the royal wedding of Prince Harry and Meghan Markle. NBC Royal Editor Camilla Tominey and TODAY style contributor Zanna Roberts Rassi break down the guest list with Savannah Guthrie and Hoda Kotb.