For more than 40 years, the Sundance Film Festival was virtually synonymous with Park City, the ski town that hosted premieres of indie classics like “Reservoir Dogs,” “Little Miss Sunshine” and “Sex, Lies, and Videotape.” But in 2027, Sundance will depart the mountain resort for its new home in Boulder , Colo., lured by tax incentives, as well as a desire to make its showcase of cinema more affordable for the artists and film lovers who have been priced out of trekking to Utah. It’s a move