In 1875, the Horn Silver Mine was discovered in the red rock cliffs of southwestern Utah. The town of Frisco was born and quickly became one of the most economically productive and notoriously violent towns in the Wild West. 'Boomtown' blends serendipitously found audio interviews of the town sheriff and other remaining inhabitants, recorded just before their deaths, with images of the decaying ghost town in 2011. 12 min. Screens before My Brooklyn. Also screens: Sunday 2:45 p.m. (S3)