Nicole Kidman's estrangement from her two oldest children has been difficult for the actress — and now, life is imitating art!

In an interview with Town & Country magazine, the actress revealed that her new film, Lion, is deeply personal because it mirrors her own family.

"I can see now, for Lion, that it was important to me because I'm a mother with adopted children," Kidman said of Isabella, 23, and Connor, 21, whom she adopted with first husband, Tom Cruise. "This movie is a love letter to my children."