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• A screening of the documentary "The Immortalists," which follows the very personal work of two biologists who believe they can put an end to "the tragedy of old age," happens at the City Library auditorium, 210 E. 400 South, Salt Lake City. Presented by the Utah Film Center. Screening starts at 7. Free.

• Utah author Sara B. Larson reads from and signs copies of her young-adult novel, "Ignite," at The King's English bookstore, 1511 S. 1500 East, Salt Lake City. The event starts at 7. Free.