"Extra's" AJ Calloway met up with "What to Expect When You're Expecting" star Cameron Diaz at the film's premiere in NYC, where she talked about her experience of playing a mom-to-be.

Cameron Diaz on Her Prosthetic Belly
When she was asked about how it felt to walk around with a prosthetic belly, Diaz said, "I don't know what it’s like to carry 10 pounds internally in my body… I do know what it's like to have it strapped to my body. I have a strange feeling it really isn't the same thing."

"What to Expect When Your Expecting" will be delivered in theaters Friday, May 18.

Scroll through the photos from the premiere.