Take on six kids in three years? Check. Nab Hollywood's sexiest leading man to help? No problem. Breast feed two kids at once? Maybe not so much.

Super-everything Angelina Jolie confessed to Europe's GMTV that even she cannot master every single facet of personhood. "You think, 'Ah, if anybody can do that, I can do that,'" she said. "But it’s a lot harder than it looks in the books. I did that a few times, but [mostly] I would take turns. It just takes a long time."

Click for photos of Angelina Jolie and Brad Pitt.

Jolie, 33, in London to promote "The Changeling," admitted that after three months of Knox and Vivienne switching off, she had had enough, saying it was "about as much as I could do."

But raising an entire basketball team plus a sixth man off the bench, that is still going great guns. "We jumped into being a family first," she said. "And that just seems like the biggest commitment you can possibly make. It doesn't feel like anything's lacking."

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