In Hollywood, it's all about who you know and who better to let you in than your own brother or sister? It's cute that these siblings have risen to the top of the entertainment industry. For some of these duos, they have also worked on a film or two together. Could there be a little bit of a rivalry between the two? One always has done a little bit better than the other, whether its an extra Academy Award or a high grossing film. In either case, these brothers and sisters have shared the limelight together and even look great side-by-side on the Red Carpet!