Today

Film screening “The Rocky Horror Picture Show”: Saturday, 7 p.m., Boulder Public Library, 1001 Arapahoe Ave., Boulder. Enjoy a screening of “The Rocky Horror Picture Show” in the shade at this special after-hours event with Colorado-based Elusive Ingredient. Blending iconic cult classic cinema and immersive live theater, Colorado-based Elusive Ingredient creates shows that are unforgettable tributes to the queer community, B-movies, cult classics and audience participation. calendar.boulderlibrary.org.

Have a children's mountain bike day: 9 a.m. Saturday, Heil Valley Ranch Corral Trailhead, 257 Geer Canyon Road, Boulder. Join the Boulder Mountain Bike Alliance and Boulder County Parks & Open Space to spend a morning on the beginner and kid-friendly trails of Heil Valley Ranch. This event will offer mini-skills courses, route suggestions, bike decoration materials and educational information. Free, discover.bouldercounty.gov.

Pottery workshop: Saturday, 1 p.m., Dairy Arts Center, 2590 Walnut St., Boulder. Join us and bring a Halloween tale to life on sound. Using a combination of vinyl stencils and a carving technique called sgraffito, participants will have the opportunity to create a Halloween plate using classic holiday images and original ideas of their own. Stencils allow the artist to apply precise and controlled images to the decorative surface. Sgraffito offers artists the opportunity to illustrate ceramics and give the overall aesthetic a more fluid, organic look. Participants will be guided through both decorating techniques and will have the opportunity to experiment with test tiles before creating a design for their plate. No sound experience is required. $110, thedairy.org.

Jay Stott Trio at BOCO Cider: Saturday, 6 p.m., BOCO Cider, 1501 Lee Hill Drive, Unit 14, Boulder. Jay Stott's Rueful Americana for Grownups covers the basics of roots music – death, tragedy, failed romances and bad decisions. But in a nice way. Toll, 720-938-7285, bococider.com.

Soon

Celebrate Indigenous Peoples Day: Sunday, 12:30 p.m., Dairy Center for the Arts, 2590 Walnut St., Boulder. Enjoy presentations of local music, dance and art. Learn how broken treaties impact the tribes and people of Boulder. how Boulder, Broomfield and Longmont welcome tribes to their homelands; how local Indigenous organizations support education, economic development and sovereignty for Indigenous students, communities and nations. Toll, 240-595-5993, rightrelationshipboulder.org.

Halloween laser magic and mysterious moons: Sunday, 1 p.m., Fiske Planetarium, 2414 Regent Drive, Boulder. Enjoy this family-friendly treat (no tricks) at Fiske. Wear a costume and explore the solar system's most bizarre, eerie and otherworldly moons. Then, indulge in the laser Halloween magic of Monster Mash, Jaws, Weird Science, Ghostbusters, Beetlejuice, Superstition, Wizard of Oz, Time Warp and more inspire. 303-492-5002, Calendarwiz.com.

Family fun in fall: 1:30 p.m. Sunday, Boulder Public Library, 1001 Arapahoe Ave., Boulder. Get cozy and festive for fall at the Boulder Public Library. Paint pumpkins with family or friends, drink hot chocolate, eat some treats, and enjoy other fall crafts and activities. Registration required per person. calendar.boulderlibrary.org.

Takacs Quartet: Sunday, 4 p.m., Grusin Music Hall (C112), Imig Music Building, 1020 18th St., Boulder. The Grammy-winning Takács Quartet's dynamic and sensitive performances have made the ensemble one of the most sought-after chamber music groups. Their unique blend of technical brilliance and emotional depth creates an unforgettable musical performance. $45-$56, 303-492-8008, cupresents.org.