Premise: "Mary Poppins Returns" had its star-studded world premiere in Los Angeles, California on Nov. 29, 2018 at the Dolby and El Capitan Theatres. Emily Blunt, John Krasinski, Lin-Manuel Miranda, Dick Van Dyke and more were the star-studded premiere for the highly-anticipated sequel to the 1964 Disney classic.
Hypothesis: Emily Blunt was in the original Mary Poppins