20/20

Mary Poppins Returns: Behind the Magic

How the idea for 'Mary Poppins Returns' was born; 'Mary Poppins Returns' star Emily Blunt on making the role her own
Aired: Nov 22, 2018 Genre: News DocumentaryCreated By: Roone ArledgeDuration: 40m Rating: 0 Country: United States of America Production: ABC News