As "Mary Poppins Returns" swoops into theaters, Inside Edition spoke with British “Super Nanny” Jo Frost about being compared to the beloved character. Jo has been giving advice to stressed-out families as cameras roll for the past 15 years. Just like the character played by Emily Blunt, and originally portrayed by Julie Andrews, Jo Frost also believes kids need a spoonful of sugar and a good dose of discipline. She also has lessons for parents as well.