For the past 40 years, the Sundance Film Festival, the influential annual gathering focused on independent film, has been indelibly linked with the snowy mountain town of Park City, Utah. ... The Sundance Institute, the nonprofit organization that runs the festival, announced Wednesday that with its 13-year contract with the city set to expire in 2026, it would begin a review process to determine whether it should move. It will now start seeking information from other U.S. cities interested in hosting the festival, which traditionally takes place in January.