Dean interviews the star of “Mary Poppins Returns,” Emily Blunt

Actress Emily Blunt attends a special screening of Disney's "Mary Poppins Returns", hosted by The Cinema Society, at the SVA Theatre on Monday, Dec. 17, 2018, in New York. (Photo by Evan Agostini/Invision/AP)

Dean interviews Emily Blunt on her new film, Mary Poppins Returns. 

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