The 2003 Sundance Film Festival took place from January 16 to January 26, 2003. American Splendor, a biopic of comic-book author Harvey Pekar, won the grand-jury prize.^[1][2] Steve Zahn and Maggie Gyllenhaal presented the awards in a ceremony televised live on the Sundance Channel.^[2]

Unseasonably warm weather attracted record numbers of attendees, among them musician Bob Dylan.^[3][4]

• Grand Jury Prize: Documentary – Capturing the Friedmans^[2]
• Grand Jury Prize: Dramatic – American Splendor^[1][2]
• Audience Award: Documentary – My Flesh and Blood^[2]
• Audience Award: Dramatic – The Station Agent^[2]
• Special Jury Prize for Emotional Truth – All the Real Girls^[2]
• Special Jury Prize for Emotional Truth – What Alice Found^[2]
• Special Jury Prize for Performance – Patricia Clarkson, The Station Agent; Pieces of April; All the Real Girls^[2]
• Special Jury Prize for Performance – Charles Busch, Die, Mommie, Die!^[2]
• Documentary Directing Award – Jonathan Karsh, My Flesh and Blood^[2]
• Dramatic Directing Award – Catherine Hardwicke, Thirteen^[2]
• Waldo Salt Screenwriting Award: U.S. Dramatic – Tom McCarthy, The Station Agent^[2]
• Excellence in Cinematography Award: Documentary – Dana Kupper, Gordon Quinn, and Peter Gilbert, Stevie^[2]
• Excellence in Cinematography Award: Dramatic – Quattro Noza^[2]
• The Freedom of Expression Award went to What I Want My Words to Do to You^[2]
• Special Jury Prize for Documentary – The Murder of Emmett Till^[2]
• Special Jury Prize for Documentary – A Certain Kind of Death^[2]