Real-Life 'Mary Poppins' Shares Advice for Raising Well-Behaved Children

Playing Real-Life ‘Mary Poppins’ Supernanny Jo Frost Gives Parenting Advice

As "Mary Poppins Returns" swoops into theaters Wednesday, Inside Edition spoke to a real-life super nanny.

"Every American said, 'Oh, you are the real-life Mary Poppins,'" British nanny Jo Frost said. "'You help families.'"

Frost has been living in the U.S. for 15 years, giving advice to stressed-out families as cameras roll for shows including, "Supernanny" and "Jo Frost: Nanny On Tour," and in multiple books.

Just like the fictitious character played first by Julie Andrews and now by Emily Blunt, Frost believes kids need a spoonful of sugar - and a good dose of discipline.

"I do believe in being firm but fair," she told Inside Edition. "It is important to have discipline and consequence ... but I also think it's incredibly important to have fun, to let your hair down with the children and go wild with your imagination."

But like Mary Poppins, Frost isn't there just for kids; she has lessons for the parents as well. She says one of the biggest challenges facing families today is too much screen time.

"I certainly help families with technology addiction from a very young age, from the age of 5 and 6 where they are over-exposed to video games and too much technology," she said. 

Similarly, she encourages parents to spend less time on their own devices. They're "not present with the children," she said. "We have to carve that time out."

So what's her take on "Mary Poppins Returns"? Frost was invited to the premiere and loved it.

"The movie was amazing!" she said.

"Mary Poppins Returns" is out in theaters Wednesday. The movie is a sequel to the 1964 original, featuring Emily Mortimer as the grown-up Jane Banks and Ben Whishaw as an older Michael Banks.

It stars Emily Blunt and Lin-Manuel Miranda, while Dick Van Dyke, who played the chimney sweep in the original movie, also makes an appearance.

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