Watch: Ben Whishaw & Emily Mortimer on Emily Blunt as Mary PoppinsAre you ready for a supercalifragilisticexpialidocious trip down memory lane? Because even though the sound of it is something quite atrocious, Mary Poppins is marking its 61st anniversary Aug. 27. (Though, sorry, even if you say it loud enough, you're unlikely to sound precocious.) Produced by Walt Disney and directed by Robert Stevenson, the 1964 movie-starring legends Dick Van Dyke and Julie Andrews-follows the story of a magical nanny who brings music and adventure to two neglected children in London.