Angelina Jolie has reportedly been named as a potential director for "Fifty Shades of Grey”.The erotic novel by British author EL James has become a huge success, with Universal Pictures and Focus Features paying $3 million (£1.9m) for the movie rights.The book is based on Stephenie Meyer’s Twilight, with Bella Swan re-imagined as 21-year-old Anastasia Steele.