• BENEFITS

Dempsey Challenge Fundraiser, with musicians Rod Picott, Amanda Shires, Dos Eckies and Sara Cox; benefits the Dempsey Cancer Center for Hope and Healing, all ages; Gritty McDuff’s, Auburn. Free. 376-2739. 8 p.m. today.

Plant and Used Book Sale, benefits Riverton PTO, Riverton Community School, Portland. 874-8210. 9 a.m. to noon Saturday.

Friends of Belgrade Public Library 5K, Belgrade Central School. $15 to $20; online registration available at RunReg.com. 465-3524. 9 a.m. Saturday.

Warren Field and Garden Club Plant Sale Fundraiser, with plants, antiques and vintage garden items, Red Farm, Warren. 354-8748. 8 a.m. to noon Saturday.

Memorial Luminary Fundraiser, Veterans Memorial Park, Old Orchard Beach. Purchase Luminary bags at Town Clerk’s office or Libby Memorial Library for $3 each or two for $5. 838-8462. 7 to 8 p.m. Sunday. 

• FAIRS/FESTIVALS

Community-Wide Health Fair, with 16 providers and door prizes, Pines Community Room, Ocean Park. Free. 934-5950. 10 a.m. to 1 p.m. today.

Livermore Falls History Night, annual heritage festival with horse-drawn wagon rides, photo and antique exhibits, historic crafts, antique cars, varied music at the gazebo, food and children’s activities, Main Street, Livermore Falls. Free. 897-6158. 4 to 8 p.m. Friday.

McLaughlin Garden Lilac Festival, with public garden tours, lilac workshops and more, McLaughlin Garden, South Paris. Free. 743-8820. 9 a.m. to 3 p.m. Friday to Sunday.

Hawgs, Pies and Fireworks, second annual festival with motorcycles, pizza and fireworks, downtown Gardiner. 582-3100. 6 p.m. to dusk Saturday.

2011 Kennebunkport Food/Wine/Works of Art Festival, various locations, Kennebunkport. Various prices and times; schedule at kennebunkportfestival.com. Tuesday and Wednesday. Through June 4. 

• SPECIAL EVENTS

Solar Shows, University of Southern Maine (Southworth Planetarium), Portland. $4 to $9. usm.maine.edu/planet. “Mars Quest and Extreme Planets, 7 and 8:30 p.m. Friday; “Rusty Rocket,” 3 p.m. Saturday; “Eight Planets and Counting,” 3 p.m. Sunday.

LIT, readings and food, Mayo Street Arts, Portland. $5 to $10/donation. mayostreetarts.org. 7 p.m. Friday.

Flea Market, with live music, food, raffles and flea market treasures, Lucid Stage, Portland. Free admission. 899-3993. 9 a.m. to 3 p.m. Saturday.

Ford & Chevy Auto Spectacular & Antique Aeroplane Show, Owls Head Transportation Museum. $12; free for under age 18. owlshead.org. 9:30 a.m. to 5 p.m. Saturday.

Friends of Evergreen 20th Birthday Party, free events including live music, an herb walk and the unveiling of the new visitors sign by Mayor Nicholas Mavodones Jr., Evergreen Cemetery, Portland. Free. friendsofevergreen.org. 9 a.m. to 1 p.m. Saturday.

• FOOD/DRINK

Wine Tasting & Meat Pairing, free tasting of wines selected for pairings with choice cuts of Pineland Farms Natural Meats, Pineland Farms (The Market), New Gloucester. 688-4539. 3 to 6 p.m. today.

Trivia Night, with drink specials, free munchies and prizes, Jameson Tavern, Freeport. 865-4196. 4 to 6 p.m. Friday, followed by entertainment. 

• FILMS

“She Is the Matador,” 2009 documentary about female pioneers in bullfighting, Rockland Public Library. Free. 594-0310. 6 p.m. today.

Free Movie Night, featuring two films on artists Lois Dodd and Harold Garde, discussion follows films, Harlow Gallery, Hallowell. Free; bring folding chairs. 622-3813. 7 p.m. today.

Sagadahoc Preservation’s Dreamland Theater, film series, Winter Street Center, Bath. $5/donation. sagadahocpreservation.org. “Dirty Dancing” (1987) and “Carmen” (1983), 7 p.m. Friday. 

• BOOKS/AUTHORS

Not Your Ordinary Book Group, with guest speaker Janet Chapman, Bangor Public Library. Free. 947-8336. 6 p.m. today.

Douglas Kennedy, author will read from his latest novel “The Moment,” Longfellow Books, Portland. Free. 772-4045. 7 p.m. today. 

• PRO SPORTS

Portland Sea Dogs, Minor League baseball, Hadlock Field, Portland. $7 to $9. portlandseadogs.com. Vs. New Hampshire, 6 p.m. today; Vs. Trenton, 7 p.m. Friday and 1 p.m. Saturday to Monday. 

• PARTICIPANT DANCE

Ballroom Dancing, with DJ John, Maplewood Dance Center, Portland. Call for price: 854-0584. 7 to 11 p.m. Friday; 7:30 to 11 p.m. Saturday.

Saturday Night Dance Party, American Ballroom Dance Academy, Portland. Call for cover: 671-7644. Argentine tango lesson at 6 p.m.; group lesson at 7 p.m.; dance party 8 to 11 p.m. Saturday.