TODAY

Boulder International Film Festival opening night — The 2018 Boulder International Film Festival presents its Opening Night Gala and feature film, "Borg vs. McEnroe," starring Shia LaBeouf as John McEnroe and Sverrir Gudnason as Bjorn Borg. The festival runs in various Boulder and Longmont locations through Sunday; opening night film is 8 p.m., Boulder Theater, 2032 14th St., Boulder; $60, reservations required; 303-449-2289, biff1.com.

eTown Presents: Brendan James — Brendan James' major label debut came in 2008, and today he is ranked among today's top troubadours. Now, after two years of touring in support of his 2012 release, "Simplify," James embarks on an altogether new sound; 7 p.m., eTown, 1535 Spruce St., Boulder; $25-$45; 303-443-8696, etown.org/events/etown-presents-brendan-james.

No Bubbles, No Troubles: A Freediving Social — Learn about why freediving is the fastest growing watersport in the world. From extreme athletes to casual underwater explorers, freediving can be enjoyed by anyone. Hosted by Kellon Spencer and Jess Wentworth; 6:30 p.m., Ocean First, 3015 Bluff st., Boulder; free; 303-444-7234.

Be More Chill — CenterStage Theatre Company presents the regional premiere of "Be More Chill," a new musical by Joe Iconis and Joe Tracz; 7 p.m., CenterStage Theatre at Koko Plaza, 901 Front St., Louisville; $12-$25; 303-673-0744, centerstagebemorechill.bpt.me.


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Mardi Gras Music Night with Gumbo le Funque — Celebrate Mardi Gras with Gumbo le Funque, a Denver funk band with a contemporary New Orleans sound. There will be food and alcohol available to purchase; 7:30 p.m., The Riverside, 1724 Broadway, Boulder, CO 80302, Boulder; gumbolefunque.com.

UPCOMING

Ravin'wolf Acoustic Jam Rock — The acoustic jam rock guitar duo Ravin'wolf performs their live show on matching acoustic guitars playing the best songs from the best years. After visiting some Neil Young, The Grateful Dead, Allman Bros, and Bob Dylan, they take their audience on a tour of their fine-crafted original compositions; 6 p.m., Friday, Bluff Street Bar & Billiards, 2690 28th St., Suite E, Boulder; free; 720-606-1734.

Grant Gordy & Ross Martin — Grant Gordy has been a major voice on the American acoustic music scene, and one of the most highly regarded young instrumentalists of his generation. Ross Martin has performed in concert halls, honky-tonks, theaters, rock clubs, festival stages, television programs and everywhere in between; 7:30 p.m., Friday, Chautauqua Community House, 301 Morning Glory Drive, Boulder; $15-$18; 303-440-7666, chautauqua.com.

Wind Symphony & Symphonic Band Concert — Composed of the most outstanding wind, brass and percussion students in the University of Colorado College of Music, the Wind Symphony is dedicated to performing the finest wind repertoire. The Symphonic Band, which comprises 70 of the finest wind, brass and percussion performers on the CU campus, performs a variety of outstanding works written for band; 7:30 p.m., Friday, Macky Auditorium, 1595 Pleasant St., Boulder; colorado.edu/music.

The Chemistry of Cooking — Join professor of chemistry, biochemistry and physics David Nesbitt for "The Chemistry of Cooking!" You'll learn secrets to a perfect pie crust, how to cook scrambled eggs without heat or how to reverse the entropy in your hot cocoa; 9:30 a.m., Saturday, University of Colorado Cristol Chemistry Rm 140, Regent Drive at Broadway, Boulder; free; 303-492-5011, colorado.edu/cuwizards.

Boulder Chamber Orchestra Presents "Beethoven's Egmont" — Boulder Chamber Orchestra presents "Beethoven's Egmont," featuring Hummel's "Piano Concerto, No. 3" and Beethoven's "Complete Incidental Music to Egmont." Guest artists are pianist Andrew Staupe and soprano Christie Conover; 7:30 p.m., Saturday, Boulder Adventist Church, 345 Mapleton Avenue, Boulder; $15.00 - $25.00; 303-583-1278, boulderchamberorchestra.org.