Once upon a time, our favorite Hollywood stars were just ordinary kids with big dreams waiting to come true. They worked hard to transform their fantasies into a reality, but probably couldn’t have even guessed what they’re going to become if you told them a couple of decades ago. Was it possible to know that they're destined for greatness by looking at their childhood photos? We created a gallery of childhood images of the biggest start in Hollywood. Do you think you can guess who they'll…