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The Week of Oct. 30

Kids don't have to wait until twilight to go trick-or-treating! Fall Frolic at Glen Echo Park runs Oct. 31 from 1 to 4 p.m. and includes trick-or-treating, pumpkin painting and a costume parade. The festivities end with a costumed dance. 7300 MacArthur Blvd., Glen Echo. 301-634-2222 or http://www.glenechopark.org. Admission is free during the day, though there are fees for some activities. Admission to the dance is $15.

The Week of Nov. 6

With hits like "One in Every Crowd," "Something to Be Proud of" and "Back When I Knew It All," Montgomery Gentry has made its mark on the country music scene. The duo headlines the American Freedom Festival Nov. 7 at 7:30 p.m. with Lee Ann Womack and Phil Vassar. George Mason University, Patriot Center, 4400 University Dr., Fairfax. 202-397-7328, 703-993-3000 or http://www.patriotcenter.com. $34.50-$99.

On Exhibit

The following exhibitions open next week: "Outwin Boochever Portrait Competition 2009," opening Oct. 23 at the National Portrait Gallery, features the work of contemporary portraitists competing for a top prize of $25,000. 202-633-1000 (TDD: 202-633-5285). "Falnama: The Book of Omens," opening Oct. 24 at the Arthur M. Sackler Gallery, centers on a type of illustrated manuscript created as a way of foretelling the future in 16th- and early-17th-century Iran and Turkey. 202-633-1000 (TDD: 202-633-5285). "In the Darkroom: Photographic Processes," opening Oct. 25 at the National Gallery of Art, West Building, traces the evolution of photography from its rise in the mid-19th century to today's digital techniques. 202-737-4215 (TDD: 202-842-6176). "Matisse as Printmaker," opening Oct. 25 at the Baltimore Museum of Art, shifts the focus from the French artist's well-known paintings to the prints he made throughout his career. 443-573-1700.

On Stage

On sale now, on stage soon: Woolly Mammoth Theatre stages "Full Circle," a political satire set during the fall of the Berlin Wall, Oct. 26 through Nov. 29. $32-$57. 202-393-3939. http://www.woollymammoth.net. . . . Round House Theatre presents "26 Miles," a comedy about a cross-country road trip, Oct. 28 through Nov. 22. $25-$60. 240-644-1100. http://www.roundhousetheatre.org.

Hot Tickets

Tickets go on sale Friday at 10 a.m. through Ticketmaster for Imogen Heap Nov. 30 at Sixth and I Historic Synagogue ($25); Arenacross Jan. 15-16 at Baltimore's 1st Mariner Arena ($20-$40). Tickets go on sale Friday at noon through Ticketmaster for these shows at the Birchmere: Rickie Lee Jones Dec. 10 ($39.50); Pieces of a Dream Dec. 26 ($35); Edwin McCain Jan. 6 ($27.50); War Jan. 12 ($45); David Sanborn Jan. 31 ($45). Free tickets will be available beginning Wednesday at 10 a.m. through Ticketmaster for the St. Lawrence String Quartet Dec. 4 at the Library of Congress. Tickets go on sale Thursday at 10 a.m. through Ticketmaster for BCF Tennis Challenge Dec. 9 at Baltimore's 1st Mariner Arena ($25-$110). 202-397-7328 or http://www.ticketmaster.com. . . . Tickets go on sale Friday at 10 a.m. through Live Nation for Tracy Morgan Dec. 31 at the Warner Theatre ($39.50-$69.50); Tegan and Sara Feb. 17 at the Warner Theatre ($35). 877-598-8696 orhttp://www.livenation.com. . . . Tickets on sale now at http://www.tickets.com for these shows at the 9:30 club: Numero's Eccentric Soul Revue Nov. 10 ($25); Zero 7 Nov. 26 ($25); the Mountain Goats Nov. 27 ($20); They Might Be Giants Nov. 28 ($25); Emilie Autumn Nov. 30 ($20); Josh Ritter Dec. 1 ($20). 800-955-5566.

On Screen

Opening Oct 23: Hilary Swank plays the legendary pilot Amelia Earhart in "Amelia." . . . Danish director Lars von Trier serves up a gothic psychosexual drama in "Antichrist." . . . "Saw VI" is the latest installment in the horror franchise. . . . The animated "Astro Boy" brings the 1960s Japanese manga series and cartoon to the big screen. . . . A boy inadvertently breaks a 200-year truce between two groups of vampires in "Cirque du Freak: The Vampire's Assistant." . . . "Crude" follows the efforts of indigenous tribes in Ecuador as they seek restitution from Chevron for contaminating their land. . . . "The Damned United" chronicles the disastrous 44 days in 1974 when Brian Clough coached Leeds United. . . . A medieval Thai nobleman masters the martial arts in "Ong Bak 2: The Beginning." . . . "The Yes Men Fix the World" follows two political activists as they infiltrate big businesses and pull off pranks. Opening dates may change.

Last Chance

Closing Sunday: "Black Pearl Sings!" at Ford's Theatre (202-347-4833); "The F Word" at the H Street Playhouse (202-396-2125); "Moonlight" at Studio Theatre (202-332-3300); "The Quality of Life" at Arena Stage in Crystal City (202-488-3300); the Washington Stage Guild's "Strange Bedfellows" at Catholic University, Callan Theatre (240-582-0050); "Tyler Perry's Laugh to Keep From Crying" at the Warner Theatre (877-598-8696). . . . Exhibits closing Saturday: "The Ceramics of Paquime and Mata Ortiz: Tracing a Family Legacy" at the Mexican Cultural Institute (202-728-1675). Exhibit closing Sunday: "American Paintings From the Corcoran Gallery of Art Collection" at the Corcoran (202-639-1700). Exhibit closing Monday: "Red Bull Art of Can" at Union Station (202-289-1908).

Next Friday in Weekend

A brand-new look for your favorite (we hope!) section of The Post. You'll find full-length reviews of all the opening movies, complete with star ratings; a handy new planning calendar with highlights for the next two weeks; and many other features to make planning your free time even easier.