Blue Ridge Summit Free Library will host an afternoon with five local authors, Elaine Ambrose, Mary Alice Baumgardner, Becky Dietrich, Joan Fry and Robert Morrow. Light refreshments will be served. 1 to 4 p.m. today. Blue Ridge Summit Free Library Community Room, 15055 Summit Plaza, Blue Ridge Summit, Pa. Free. Call 717-794-2240.
Teens Have Choices presents its third annual Teen IDEA Challenge. Activities, refreshments, plus the first 300 participants will receive a free movie ticket. All teens will be entered to win an iPad. Noon to 4 p.m. today. Leitersburg Cinemas, 20145 Leitersburg Pike, northeast of Hagerstown. Free. Go to www.teenshavechoices.org/tic.htm or call 301-671-3000.
Model shipbuilder Norm Little will talk about building his 15-foot-long model of the Titanic. The model is on display. 2 p.m. today. Discovery Station, 101 W. Washington St., downtown Hagerstown. For reservations, call 301-790-0076 or 877-790-0076. Programs are free with regular admission of $5 to $7 or annual membership. Go to www.discoverystation.org.
Blue Eyed Soul, Todd Coyle, the Kathleen McGrath Band, Youngblood, Rolling Coyotes and the Flashbacks will perform. 8 p.m. today. Apollo Theater, 128 E. Martin St., Martinsburg, W.Va. Seating is limited. Tickets cost $15. Go to www.macetv.net/concertforcasa.html or call 304-263-4781.
Wind 'n' Wire, an ensemble of traditional instruments, will present a program of relaxing and inspiring music celebrating winter. 5 p.m. today. Hagerstown Seventh-day Adventist Church, 11507 Robinwood Drive, east of Hagerstown. Free; a free-will offering will be requested. Call 301-733-2993.
Open house train display
The display will include trains operating on the new permanent layout and a small American Flyer Christmas display. 1 to 5 p.m. Sunday. Antietam Station, 17230 Shepherdstown Pike, Sharpsburg. Free, donations accepted. Call 301-824-2239, e-mail firstname.lastname@example.org or go to www.antietamstation.com.
A gin-swilling riverboat captain is persuaded by a straight-laced missionary to use his commercial boat to attack a German warship during World War I. Stars Humphrey Bogart, Katharine Hepburn, Robert Morley. Not rated. 2 p.m. Sunday. The Capitol Theatre, 159 S. Main St., downtown Chambersburg, Pa. $5; $3, ages 12 and younger. The box office will open one hour before the movie. Call 717-263-0202 or go to www.thecapitoltheatre.org.
Mystery dinner theater
Without a Cue Productions will present "Lucy, I'm Dead," an audience-participation comedy. Doors open at 12:30 p.m. Sunday; show starts at 1 p.m. Applause Caterers, Academy Theatre Banquet & Conference Center, 58 E. Washington St., downtown Hagerstown. Tickets cost $45 for show and buffet dinner. Cash bar. Reservations recommended. Call 301-797-5755.