Saturday
19th Annual Shopping Extravaganza — To raise money for nonprofit organizations in the community, 10 a.m.-6 p.m., 5050 Factory Shops Blvd., Castle Rock, go online for prices. Tickets: tinyurl.com/3mauf53b.
USA Today Wine & Food Experience 2024 — Taste, sip, savor, 1-4 p.m., York Street Yards, 3821-3893 Steele St., Denver, go online for prices. Tickets: wineandfood.usatoday.com/denver.
Movies at McGregor Square — “Harry Potter and the Goblet of Fire,” 2:30 p.m., 1901 Wazee St., McGregor Square, Denver; mcgregorsquare.com/events.
Voyage Under the Sea: The Mermaid Royal Ball — For children ages 6-18 with special and medical needs, 5-9 p.m., Downtown Aquarium Denver, 700 Water St., Denver. Registration: voyagercharity.com.
Big Gigantic — With The Floozies, SunSquabi, 6 p.m., Red Rocks Amphitheatre, Morrison, $86 and up. Tickets: axs.com.
Butterfly Pavilion’s Butterfly Ball Colorado — 6 p.m., Omni Interlocken Hotel, 500 Interlocken Blvd., Broomfield, $275 and up. Tickets: bebids.me/tickets/butterflies/tix.