Saturday, September 29 • Sri Yantra: The Oregon Desert Mystery. Premiere of a documentary on the Alvord Desert Sri Yantra that appeared in 1990. After 25 years, recently discovered video footage reveals the origin of the massive design. 4 p.m. and 7 p.m. Orpheum Theatre, 121 W. Broadway Ave., Fairfield. (641) 472-8333. Free tickets available at At Home Store in Fairfield.