The Curious Case of the Colorado Cannibal — Was the infamous Alferd Packer a cannibal? Was he a murderer? Join Erin Baxter for a 21st century look at the subject that includes a fresh analysis of historical information and a modern examination of archaeological data that may offer some new food for thought. Event is free, seating is limited. Doors open at 6:15 p.m.; 7 p.m. Thursday, Sept. 26, CASE Building, Chancellor Hall, 1725 Euclid, Boulder; free.
Yiddish Club — Yiddish speakers who wish to maintain their connection and language skills will enjoy conversation and discussion led by Shirley Hartman; 11 a.m. Thursday, Sept. 26, Boulder Jewish Community Center, 6007 Oreg Ave., Boulder; free; 720-749-2531.
Battle of the Industry Bands — Join us for Boulder Chamber’s third annual Battle of the Industry Bands. Rock out and be part of the fun at eTown Hall. Only one band will take home the grand prize, a donation to the charity of the sponsors’ choice and the reigning glory of Best Industry Band. Come out to help cheer them on. Ticket includes entrance to the event, a chance to network, appetizers and an open bar; 5:30 p.m. Thursday, Sept. 26, Etown, 1535 Spruce St., Boulder; $25.
City of Boulder Climate Mobilization Action Plan Launch — Join the City of Boulder to launch the next phase of climate action; 5:30 p.m. Thursday, Sept. 26, Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Ave., Boulder, CO 80303, Boulder; free.
Month of Modern Wrap Party — Join us for an evening of cocktails, food, music, and good company as we celebrate the region’s most acclaimed names in modern design. This years Wrap Party features multiple bars, local cuisine, great music and more in a relaxed, luxurious atmosphere. This year’s showcase is focused on CU Boulder students in architecture, interior, landscape and urban design; 6:30 p.m. Thursday, Sept. 26, Galvanize, 1023 Walnut St., Boulder; $35; 303-444-8488, monthofmodern.com/event/2019-wrap-party.
“The Russians are Coming! The Russians are Coming!” — Directed by Norman Jewison and featuring Alan Arkin, Carl Reiner, Eva Marie Saint, Theodor Bikel, Jonathan Winters (126 min., 1966); 7 p.m. Thursday, Sept. 26, Boulder Public Library, 1001 Arapahoe Ave., Boulder.
Ben Westhoff: “Fentanyl, Inc.” — Ben Westhoff will speak about and sign his new book, “Fentanyl, Inc.: How Rogue Chemists Are Creating the Deadliest Wave of the Opioid Epidemic”; 7:30 p.m. Thursday, Sept. 26, Boulder Book Store, 1107 Pearl St., Boulder; $5; 303-447-2074.