Sad face!

Nicole Kidman is busy promoting her critically acclaimed film Rabbit Hole, about a couple whose son is killed in a car accident, and Kidman often brings up what it means to be a mom to Sunday Rose, her two-year-old daughter with hubby Keith Urban...

But the actress has two other kids as well! Connor and Isabella, her adopted children with ex husband Tom Cruise.

"They live with Tom, which was their choice," Kidman reveals to Hello! Magazine. "I'd love them to live with us, but what can you do?"

Cruise resides in LA mainly while Kidman lives in Nashville.

The Rabbit Hole star also said the following to the AP: "It took me so long to get pregnant and have a baby, so I have enormous gratitude. I have two grown children with that enormous gratitude that they are healthy and sane and together and are great, great people. So I’m not one of those people that needs to be reminded of what I have."

Does that mean she hardly ever sees her adopted kids? And if so, is she truly happier or sadder because of it?