Through all life’s troubles, Brad Pitt knows his best friend and co-star George Clooney has his back. The Oscar winner has been locked in a bitter never-ending divorce with ex-wifeAngelina Jolie. He recently opened up about being able to navigate the ongoing battle thanks to Clooney’s support, RadarOnline.com can reveal. Pitt, 60, opened up about his friendship with Clooney, 63, in a recent interview for GQ. As he took in the grounds of Château Miraval, the French winery where he and Jolie got married – and has since been at the center of their bitter court battle – he appeared optimistic desp…