On Dec. 18, 1963 in Shawnee, Okla., William Bradley Pitt was born to Jane Etta and William Alvin Pitt. 48 years later, William -- better known to you as Brad -- has become one of the biggest movie stars in the world thanks to his performances ('Se7en,' 'Fight Club,' 'Ocean's 11,' 'Moneyball') and relationships. (Did you know Pitt once dated Gwyneth Paltrow and was married to Jennifer Aniston before his current long-term pact with Angelina Jolie? Me neither!) 2011 might have been Pitt's best year yet: in addition to continuing his successful coupling with Jolie, the actor starred in two likely Best Picture contenders, 'The Tree of Life' and 'Moneyball,' the latter of which has him in the thick of the Best Actor race. In honor of Pitt's happy day, let's remember his finest onscreen moment.