Moore, 48, will start shooting "LOL" with Cyrus, 18, in July in a remake of the French film by the same name.
Speaking at "The Joneses" press day, Moore says her own children "definitely admire" Cyrus. And after their first face-to-face last week, Moore admitted she is becoming a fan, too.
"She's going to do an amazing job," said Moore. "She's extremely talented."
And there will be no need for extra parenting off the set, Moore added, because "(Miley) comes from a really solid family."