Angelina Jolie, Brad Pitt's twins Vivienne and Knox are officially 15 see their best photos
It's a big week for Angelina Jolie and her family: her youngest children, twins Vivienne Marcheline and Knox Len, are officially 15 years old, if you can believe it. The twins, who were born in 2008 and who the Maleficent actress shares with ex-husband Brad Pitt, celebrated their birthday on July 12.