Aside from her fabulously fit post-pregnancy body, Angelina Jolie showed off some new ink at the Saturday night New York premiere of her movie Changeling. The mom of six has famously tattooed the longitude and latitude of each of her children's birthplaces on her left arm (which covers an old "Billy Bob" tattoo for former husband Billy Bob Thornton.) Twins Vivienne and Knox, who were born on July 12 in Nice, France, presumably are honored with twin tattoos on their mother's arm. The Brangelina brood arrived in New York City last week but will return to the German villa where they are expected to stay for three months as Brad Pitt films the new Quentin Tarantino movie, Inglorious Bastards.