In Her Shoes (2005)

Two sisters, plus a dead mother, a remarried father, and a hostile step-mother. The sisters, each in her way, have perfected the art of losing. The elder, Rose, is an attorney, responsible, lonely, with a closet full of shoes. The younger is Maggie, beautiful, selfish, and irresponsible. Her drunken behavior gets her tossed by her step-mother from her dad's house; worse behavior gets her tossed from Rose's apartment. 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 and, with any luck, may open to her sister as well.