Angelina Jolie Enjoying “Special Baby Time” With Twins in London

 Andrea Renault/Polaris

Bloody adorable!

At Monday's London premiere of Salt, Angelina Jolie admitted to that her kids with Brad Pitt love to play with blood — the fake, behind-the-scenes kind, that is.

Jolie, 35, explained that her kids — including Maddox, 8, Pax, 6, Zahara, 5 and Shiloh, 4 — would often come with her on the set of action thriller. "I would bring them in early in the mornings…and I'd let them [use] blood," she said.

"So we play together, they try on my wigs, they play with the blood," the mother of six told Us.

But don't worry, she insisted. "They know it's all silly! They test the harnesses and we have them flying around. They know what it is."

Not that Jolie didn't shed any real blood while making the intense action flick. "I have a little scar right here," she admitted, pointing to the front of her scalp, describing how she "went smack into a table" during an gun-shooting sequence. "It was a little embarrassing."

Were Shiloh and the gang in London for the big night? Just "the babies," Jolie told Us of twins Vivienne and Knox, 2. "I'm having some special baby time."

The star also lent some insight into how she and Brad Pitt co-parent. "We're very much a united front," she told Us. "They can't get Mommy to do something Daddy wouldn't. We're very much the same. But we take turns working and we bring the kids to each other's sets, so we try to stay together."

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