The Sundance Film Festival, which is backed by actor Robert Redford and his Sundance Institute for movies, comes to an end today in Park City, Utah. Saturday night's awards ceremony saw the sci-fi drama Primer, win the top grand jury prize, while the jurors awarded DIG! the top prize in the documentary category. Debra Grankik took the dramatic directing award for Down to the Bone, about a lower-middle-class wife and mother's struggles with cocaine addiction.