In Her Shoes (2005)

Free-wheeling irresponsible Maggie Feller gets through her life thanks to her remarkable looks and her lack of scruples. She constantly goes to her straitlaced, plain jane, successful lawyer sister, Rose for financial help. Right about the same time that Maggie discovers hidden letters that reveal she and Rose have a grandmother, Maggie does something to betray Rose';s trust. Then, while searching in her father';s desk for money to filch, Maggie finds an address; the past and the future open up to her that can help smooth the path toward reconciliation.