Theater this week, free

10 a.m.

• Wiggle Worms

  Eaton Public Library

  For babies, toddlers and preschoolers, until 11 a.m.

  MusicFree

noon

• Go West Film Festival: High Noon Showing

  A Go West Film Festival screening of Sergeant Rutledge.

  LINC Library Innovation Center, Greeley

  For adults, until 3 p.m.

  MusicFree

7 p.m.

• Open Mic/ Open Floor Night

  Community members can perform short, family-friendly acts or watch, with a silent auction fundraiser and refreshments.

  Front Range Classical Ballet Academy, 3501 S. Mason Unit #1, Fort Collins

  For families, until 9 p.m.

  MusicFree

All day

• UNC Brass and Percussion Day

  Brass and percussion players take part in masterclasses and All-State audition prep, with student and faculty performances.

  Campus Commons Performance Hall, Greeley

  MusicFree

10:30 a.m.

• Centennial State Ballet Presents "The Nutcracker"

  Dancers perform ballet excerpts with a simple reading of the story between selections, for all ages.

  Erie Community Library

  For babies, toddlers, preschoolers, kids and families, until 11 a.m.

  MusicFree

noon

• Go West Film Festival: High Noon Showing

  A G-rated showing of Way Out West, part of the Go West Film Festival.

  LINC Library Innovation Center, Greeley

  For adults, until 3 p.m.

  MusicFree

6 p.m.

• Explore our National Parks: Sand Creek Massacre

  A park official discusses the history and sights of Sand Creek Massacre Historic Site in a video talk, with time for questions.

  Erie Community Library

  For adults, until 7 p.m.

  MusicFree

7 p.m.

• New Material Night!

  A comedy open mic welcomes performers to take the stage and audiences to watch.

  The Comedy Fort, Fort Collins

  ArtsFree

11 a.m.

• LINC Music & Movement

  Preschoolers and caregivers move together through an active storytime with stories and music that support motor skills and early literacy.

  LINC Library Innovation Center, Greeley

  For babies, toddlers and preschoolers, until 11:30 a.m.

  BooksFree

1 p.m.

• Music and Movement

  Caregivers and children make music together through songs, dancing, instrument play and group music-making.

  Eaton Public Library

  For babies, toddlers and preschoolers, until 2 p.m.

  MusicFree

6 p.m.

• Ukulele Strumming Circle

  Beginners and experienced players strum favorite tunes together and learn ukulele in a music circle.

  Centennial Park Library, Greeley

  For kids, teens and adults, until 7:30 p.m.

  MusicFree