The big day may still be a month away, but Katie, 35, says her Christmas planning is already in full swing as her highly organised daughter has already made a list, and checked it twice.
"We are getting ready for Christmas in my house," the mum-of-one said. "My daughter's eight years old and she already has her Christmas list ready. It's written out. She's very organised."
Having a daughter with very strong ideas about what she wants can be stressful, admits Katie, as any parent whose child wants a specific bit of Frozen merchandise - one which has been out of stock since June - will agree.
"I start to get a little bit of a panic because you cannot screw up talking to Santa," the actress confessed on The Ellen DeGeneres Show on Monday November 24.
"You cannot miss any item on that list, because if you screw that up, that's years and years of hearing about it, and probably therapy," she joked.
So just what does Tom Cruise's daughter want for Christmas?
"She's very specific," said Katie. "Like, 'I want a puppy, and then I want a pink collar that has sparkles on it that says the puppy's name. Then I want shoes for the dog...Then I want a purple clip.'
"It's all very detailed."
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