Oscar-winner Sandra Bullock -- pictured at the Oscar ceremony in March with her husband -- has filed for divorce, People magazine has reported on its website, one month after several women came forward claiming to have had affairs with her husband Jesse James.(AFP/Getty Images/File/John Shearer)AFP – Oscar-winner Sandra Bullock has filed for divorce from her allegedly philandering husband, and at the same time has become a new mom, adopting a three-and-a-half month old baby boy, People magazine reported Wednesday.