Julia Roberts had her breakthrough with Pretty Woman back in the day and became one of the most in demand actresses in Hollywood. In 2009, she was asked to play the lead role in the adaptation for the big screen of Michael Lewis' book The Blind Side, but she politely refused. We guess it's probably a good thing that Julia already won an Academy Award in 2001 for her work as "Erin Brockovich". Because after she turned the part down, Sandra Bullock took on the role of "Leigh Anne Tuohy" - and won the Oscar for Best Actress in a Leading Role in 2010!