Jon Voight was in charge of his Jolie-Pitt grandkids, Shiloh, Zahara, and Pax, on Saturday. They went for a scenic walk around a London park while Brad Pitt was off taking care of business. Angelina Jolie, meanwhile, was busy with meetings after traveling to the Netherlands to attend a trial at the International Criminal Court. It seems Jon went abroad to pay Angelina and her family a visit while they're based in the UK, where Brad's been working on World War Z for the last few months. Angelina's October cover of Vanity Fair has a feature of her next big screen endeavor, her directorial debut In the Land of Blood and Honey. Zahara also has a spot in the issue, since she posed for a photo with Angelina and her little sister, Vivienne.