Clarkson appeared in multiple independent films in 2003, including "The Baroness and the Pig"; Lars von Trier's experimental drama "Dogville";, the critically acclaimed indie film "The Station Agent", playing an artist who befriends a diminutive man (Peter Dinklage) who suddenly appears as a town resident living in a local train depot; "Pieces of April", in which she portrayed a mother dying of cancer who travels to visit her estranged daughter (Katie Holmes) for Thanksgiving; and the David Gordon Green-directed drama "All the Real Girls", as the mother of a young womanizer in a small southern town. Four of the films"The Baroness and the Pig", "Pieces of April", "The Station Agent", and "All the Real Girls"premiered at the 2003 Sundance Film Festival. Clarkson received numerous accolades for her performances: For "The Station Agent", she won the Special Jury Prize at Sundance, and was nominated for a Screen Actors Guild award for Outstanding Performance by a Female Actor in a Leading Role, among others. Her performance in "Pieces of April" earned her a Sundance Special Jury Prize, as well as nominations for the Screen Actors Guild award for Outstanding Performance by a Female Actor in a Supporting Role, a Golden Globe Award for Best Supporting Actress, and an Academy Award for Best Supporting Actress.