MARY POPPINS RETURNS arrives in theatres everywhere on December 25, 2018! MARY POPPINS RETURNS stars Emily Blunt as the practically-perfect nanny with unique magical skills who can turn any task into an unforgettable, fantastic adventure; Lin-Manuel Miranda as her friend Jack, an optimistic street lamplighter who helps bring light—and life—to the streets of London; Ben Whishaw as Michael Banks; Emily Mortimer as Jane Banks; and Julie Walters as the Banks’ housekeeper Ellen; w