Portland Symphony Orchestra Show House Tour, benefits the PSO, 149 Western Promenade, Portland. $25 at door. porttix.com. 10 a.m. to 4 p.m. today to Saturday; noon to 4 p.m. Sunday.
10×10 Benefit Art Exhibit and Sale, 300 works of art by 125 Maine artists all priced at $200; reception features food and drink by area restaurants; benefits “Arts are Elementary”; St. Paul’s Episcopal Church and Curtis Memorial Library, Brunswick. Free. 10x10brunswick.org. 5 to 8 p.m.
Karaoke Fundraiser for Midcoast Youth Theater, Midcoast Youth Theater, Brunswick. $10; $25 per family. 729-7120. 7 to 10 p.m.
Nasson Community Center Golf Tournament, benefits the center; Pine Hollow Par 3 Golf, Sanford. $25. nassoncc.org. 1 p.m.
Sixth Annual Chefs Soiree, food and wine samples, cooking demos and more; benefits the nutrition center; St. Mary’s Nutrition Center of Maine, Lewiston. $100. 755-3002. 5:30 p.m.
“Jack and Jill,” play about a delightful romp through marriage; fundraiser for the Osher LifeLong Learning Institute; University of Southern Maine (Wishcamper Center), Portland. $10; $5 for Osher members. 929-6676. 7:30 p.m. Friday and Saturday; 2 p.m. Sunday.
Woofminster Dog Show, contests for dogs, a silent auction, prizes, music, an animal communicator and a raffle; benefits NEADS: Dogs for Deaf and Disabled Americans; Camp Ketcha, Scarborough. $10; $5 for dogs and children ages 7 to 18; space is limited. planetdog.com. Registration at 12:30 p.m.; event 1 to 4 p.m.
Biddeford-Saco Rotary Club Sixth Annual Wine Tasting, benefits scholarships for Saco, Biddeford and OOB high school seniors, 21-plus; Jimmy the Greek’s, Old Orchard Beach. $25. 286-7074. 6 to 9 p.m.
Arundel Historical Society Craft Fair, crafts, bake sale and raffles; benefits the Arundel Historical Society; Mildred L. Day School, Arundel. 985-3087. 8:30 a.m. to 3 p.m.
Yarmouth Livestrong Day Bike Ride, global event to raise awareness about the 28 million people living with cancer, Log Cabin, Yarmouth. Free/donation. Call to pre-register: 841-3327. 9:30 a.m.
Be Healthy 5K Run/Walk, benefits the Center for Breast Care; Southern Maine Medical Center, Biddeford. $15 to $20. smmc.org. Run at 9 a.m.; walk at 10 a.m.
Art at Marrett, silent auction of work by members of the Saco River Art League; benefits Marrett House and Historic New England; Marrett House, Standish. Free admission. historicnewengland.org. 10 a.m. to 4 p.m. Saturday; 10 a.m. to 2 p.m. Sunday.
“Mrs. Smith Goes to Washington,” one-woman play about Margaret Chase Smith; benefits the American Heart Association; Abromson Center, University of Southern Maine, Portland. $25. 879-5700. 4 p.m.
Schoodic Summer Chorus Benefit Harvest Festival, singers, instrumentalists and a harvest meal, Hammond Hall, Winter Harbor. $15; $5 for students; free for children under 12. schoodicartsforall.org. 3 to 6 p.m.
“In the Pink Food, Fun and Fashion Fling,” fashion show, champagne reception, and silent and live auctions; benefits York Hospital’s Breast Cancer Living Well Program; Ogunquit Playhouse. $55. 351-2385. 5 p.m.
Cumberland County Fair, agriculture exhibits, midway, food, live entertainment and more, 197 Blanchard Road, Cumberland. cumberlandfair.com. $9 adults weekends; $7 adults weekdays; free for ages 12 and under. Various times today to Saturday.
Chalk on the Walk, art walk, performances, workshops and more; various locations, Biddeford. Free. heartofbiddeford.org. 11 a.m. to 4 p.m. Saturday (postponed from Sept. 24).
Downtown Brunswick Fall Festival, music, craft fair, children’s activities and more, Brunswick Mall. brunswicktowntown.org. 10 a.m. to 3 p.m. Saturday.
Swine & Stein Octoberfest, locally crafted beer, food and music; various locations, Gardiner. $15. gardinermainstreet.org. 11 a.m. to 7 p.m. Saturday.
Maine Audubon’s Apple Day, harvest festival with cider pressing, crafts demonstrations, music, dancing, nature walks and more; Maine Audubon (Gilsland Farm), Falmouth. Free. 781-2330, Ext. 215. Children’s illustrator and author Cathryn Falwell, 10 a.m. to 2 p.m. Saturday.
Lincolnville Fall Festival, parade, food, farmers market, beach treasure hunt and more, Lincolnville Beach. 789-5811. 9 a.m. to 2:30 p.m. Saturday.
Maine Fiberarts Festival, demonstrations, displays and sales of a variety of fiber-based items, Coastal Maine Botanical Gardens, Boothbay. Free with garden admission. 633-4333. 10 a.m. to 4 p.m. Saturday and Sunday.
Damariscotta Pumpkinfest & Regatta, with pumpkin boat racing, pumpkin catapulting, a giant pumpkin parade and more; various locations, Damariscotta. Most events are free. Various times Saturday to Oct. 10; schedule at damariscottapumpkinfest.com.
VinFest, wine and food festival with demonstrations, grape stomping, movies and more, Cellardoor Winery, Lincolnville. $10 Saturday; free movie Sunday. mainewine.com. 10 a.m. to 5 p.m. Saturday; 7:30 p.m. Sunday.
Fryeburg Fair, Maine’s largest agricultural fair with harness racing, nightly entertainment, a midway and exhibits, Fryeburg Fairgrounds. $10; free for children under 12; free for ages 65 and older on Tuesday. fryeburgfair.com. Various times Sunday to Oct. 9.
• SPECIAL EVENTS
Full Dome Double Feature: “Two Small Pieces of Glass” and “IBEX,” University of Southern Maine (Southworth Planetarium), Portland. $5, $6. 780-4249. 7 and 8:30 p.m.
Maine Women in the Arts Fall Fine Arts Show with Miniatures, original paintings, tabletop miniature paintings and larger art, Masonic Hall, Kennebunkport. 787-3726. 10 a.m. to 7 p.m. Friday; 10 a.m. to 6 p.m. Saturday; 10 a.m. to 4 p.m. Sunday.
Ecstatic Dance, participant dance, The Awake Collective, Portland. $10 to $20. theawakecollective.com. Live music by Mindy Ray, 8:30 to 10 p.m. Friday; DJ, 10 a.m. to noon Sunday.
New Gloucester History Barn Open House, New Gloucester Historical Society (History Barn). Free. 926-3188. 9 a.m. to noon.
Designing Women Fine Art and Craft Show, 25 women artisans selling jewelry, felted goods, doll clothes, pottery, baskets, bags and more; Consolidated School, Kennebunkport. $2. 9 a.m. to 4 p.m.
19th Annual Chowdah Challenge, clam and seafood chowder, lobster bisque and more, L.L. Bean Discovery Park, Freeport. $10. fcsmaine.org. 11:30 a.m. to 2 p.m.
Pumpkin Patch Trolley, ride to a field designated as the pumpkin patch, Seashore Trolley Museum, Kennebunkport. $5.50 to $8; free for ages 5 and younger. trolleymuseum.org. 11 a.m. to 3 p.m. Saturday and Sunday.
Tweed Ride, leisurely bike ride in fancy dress, Portland Velocipede. Free; bring own bicycle. 899-3133. portlandvelocipede.com. 2 p.m.
“The Phantom of the Opera,” screening of 25th anniversary theater performance live from Royal Albert Hall, Brunswick 10. $18 to $22. fathomevents.com. 2 p.m. Sunday; 7:30 p.m. Wednesday. Through Oct. 11.
Down East Pecha Kucha, featuring eight innovative thinkers, designers and/or artists from the region, Stonington Opera House. $5. 367-2788. 7 p.m.
The Many Styles of Syrah/Shiraz, wine appreciation session by Eric Archer, The Wine Bar & Restaurant, Portland. $30 to $40. winewiseevents.com. 6 to 7:30 p.m.
“A Bird of the Air” (2011), Stonington Opera House. $6; $5 for ages 17 and under. 367-2788. 7 p.m. today.
“As We Forgive” (2010), Rwanda documentary, Rockland Public Library. Free. 594-0310. 6:30 p.m. today.
Camden International Film Festival, films, guests, panels, parties and other special events; various locations, Camden and Rockland. $8.50 per film; $25 to $100 for passes. Schedule at camdenfilmfest.org. Today to Sunday.
“Unfinished Spaces” (2011), documentary of three young architects commissioned by Fidel Castro and Che Guevara, Strand Theatre, Rockland. $8.50. camdenfilmfest.org. 7 p.m. Friday.
Author Mary Morton Cowan takes the audience on an imaginary world tour and shows the fun and adventure of writing for children, Sawyer Memorial, Greene. Free. 946-5311. 2 p.m. Friday.
Michael Perry will present a slide film on his travels around New England, Sawyer Memorial, Greene. Free. 946-5311. 7 p.m. Friday
Kathy Gunst, author of “Notes from a Maine Kitchen,” book signing and reception, The Danforth, Portland. danforthmaine.com. 5:30 to 7:30 p.m.
Elizabeth Gould and Paul Fitzgerald, authors of “Crossing Zero: The Afpak War at the Turning Point of American Empire,” Bowdoin College (Sills Hall), Brunswick. Free. 729-5083. 3 to 5 p.m.
Bangor Book Festival, book signings, readings and discussions with authors and illustrators, various locations, Bangor. Free. bangorbookfest.org. 9 a.m. to 5 p.m.
Release Party, for “The Pig Scramble” with author Jessica Kinney, Frontier Cafe, Cinema & Gallery, Brunswick. Free. 725-5222. 10 a.m. to noon.
Sarah L. Thompson, author of “Mercy: The Last New England Vampire,” author reading and signing, cemetery tour, ghoulish photo booth and more, Eastern Cemetery, Portland. 420-1126. Free. 2 to 4 p.m.
Elizabeth Gould and Paul Fitzgerald, authors of “Crossing Zero: The Afpak War at the Turning Point of American Empire,” Gulf of Maine Books, Brunswick. 729-5083. 11 a.m.
“Ten Contemporary Poets, Plus One,” readings by contemporary American poets, York Public Library. Free; call to register: 363-2818. 7 p.m.
Mystery Author Series, with Lea Wait, author of the Shadows Antique Print Mysteries, Curtis Memorial Library, Brunswick. 725-5242. 7 p.m. Through Oct. 18.
Norman Beaupre, author of “Simplicity in the Life of the Gospels: Spiritual Reflections,” McArthur Library, Biddeford. 284-4181. 6:30 p.m.
Mystery Month of Maine Crime Authors, with James Hayman, author of “Death Be Not Loud,” Lithgow Public Library, Augusta. Free. 626-2415. 6:30 p.m. Through Oct. 26.