Young Hazel became a "die-hard" Andrews fan when her mother showed her the original "Mary Poppins" movie years ago, and though she's thrilled her mum has taken on the role of the magical nanny, Emily thinks her daughter is a "traitor."
She explains, "Hazel watched the original the other night like a little traitor!"
But Blunt's kid clearly loves having Poppins for a mum. "Now, when we play together, she says to me, 'You be Mary Poppins'. So I say, 'Spit spot and off you go!' "
"I have my own nanny, Tina who's Irish, in the other room saying, 'That is so cool!' "