The Sum of Us: This play by Australian writer David Stevens is about a widower and his gay son navigating through a complex relationship. The play runs at the 6th @ Penn Theatre in Hillcrest until Dec. 22. It shows Thursday through Saturday at 8:00 p.m. with a Sunday matinee at 2:00 p.m. Tickets are $23. 6th @ Penn is located at 3704 Sixth Ave. (619) 688-9210.

Film screenings: The School of Theatre, Television, and Film at San Diego State University presents the annual winter screening of new work by film students at 7:00 p.m. in the Don Powell Theatre, located near the front of the campus. The $10 ticket includes a barbecue at 5:30 p.m. outside the theater. The diverse program will include fiction, documentary, animation, music videos and experimental works. For more information, call (619) 594-1375 or e-mail kzaccari@mail.sdsu.edu. SDSU is located at 5500 Campanile Dr.

Momentum day hike: A hike begins at Torrey Pines at 9:00 a.m. as part of Momentum, a group for gay men around the ages of 25-35 that is based out of Family Health Centers of San Diego’s Gay Men’s Health Program (GMHP) and focuses on health through education, social skills and community building. For directions and to RSVP, call Curtis Abney at (619) 515-2300 ext. 2913.

Holiday Jazz & Blues Festival: Celebrate the season with soulful music, food and fun at the annual Holiday Jazz & Blues Festival, which takes place from 10:00 a.m. to 12:00 midnight downtown between Seventh Ave. and Market St. Enjoy holiday food and merchandise and plenty of jazz and blues Christmas music. The event is free, but donations of toys, food or money will be accepted for charity. (619) 685-7215.

Space Invaders: Check out Medavog’s photographic show, which features images of real people converted into cartoons that are then digitally photographed and made into art, from 7:00 to 10:00 p.m. at Korova Coffee Bar, located at 4646 Park Blvd. (619) 296-4890 or medavogphotoart@aol.com.

Wiener Wonderland: The San Diego Dachshund Club is hosting their annual “walk in the park” event for dogs. Bring your dog dressed in holiday attire and walk anywhere along the Prado from the main fountain area (by the Reuben H. Fleet Science Center) to the Organ Pavilion. There is no central meeting location. For more information, visit www.sddc.us or call (858) 755-9270.

Holiday Highballs: Babette Schwartz presents “Holiday Highballs” at Martinis Above Fourth at 9:00 p.m. on Saturday, Dec. 17, and Sunday, Dec. 18. Special guests on Saturday include Coco LaChine, Christina Monet, Fifi and Chad Michaels. Sunday’s show features Tootie, Michaels and LaDonna Monroe. Tickets are available in advance for $15 at Babette Schwartz, located at 421 University Ave. in Hillcrest. (619) 220-7048.

John Waters: Eccentric filmmaker and actor John Waters is bringing his one-man show, A John Waters Christmas, to the Casbah. Waters uses his acclaimed monologue style, cultural observations, ruminations on the holidays and personal recollections on his career to entertain. The show starts at 8:30 p.m. Tickets are $40 to $75. The Casbah is located at 2501 Kettner Blvd. (619) 232-HELL.

Holiday Gospel Dinner: For one night only, House of Blues San Diego will transform the award-winning Gospel Brunch into a roof-raising celebration for the whole family to enjoy. Guests will be treated to an all-you-can-eat, Southern style buffet loaded with traditional holiday favorites and a host of Southern specialties. Tickets are available through the box office: $49 for adults, $24.50 for children 6-12 years old and free for children under 5 years old. Advance purchase is recommended. The House of Blues is located at 1055 Fifth Ave. downtown. (619) 299-2583.

Six Degrees open mic: Laura Jane’s Underground Open Mic on the patio at Six Degrees takes place Monday nights from 7:00 to 10:00 p.m. Bring your poetry, songs, comedy, and your voice. Karaoke equipment will be available as well. Six Degrees is located at 3175 India St. (619) 296-6789.

Poetry open mic: Hear some of San Diego’s best poets read their work during a poetry open mic hosted by PoeticWorks at the Hot Monkey Love Café from 8:00 to 10:00 p.m. Requested donations of $5 to $8 will go to the ComMonUnity Poetry Project. The Hot Monkey Love Café is located at 5960 El Cajon Blvd. (949) 547-9935.

Holiday of Lights: The Del Mar Fairgrounds hosts the largest holiday lighting display on the West Coast with over 350 displays, accompanied by holiday tunes. The drive through the racetrack takes about 30 minutes. Tickets are $12 per car for five people and $17 per car for six people or more. The Holiday of Lights display runs through Jan. 1. (858) 793-5555.

Ocean Beach Farmer’s Market: Browse and shop at this farmer’s market that features approximately 80 booths containing a variety of select fresh fruits, vegetables, breads, cheese and flowers, including specialty items and tasty treats. 4:00 p.m. to 8:00 p.m. The market is located in Ocean Beach at the 4900 block of Newport Ave. (619) 279-0032.

Wine flight: The Loews Coronado Bay Resorts’ sommelier, Kurt Kirschenman, presents a wine-tasting flight of Australian white and red wines, paired with appetizers by Chef Martin T. Batis. The tasting runs from 5:30 to 7:00 p.m. in the Azzura Point Lounge at Loews Coronado Bay Resort, located at 4000 Coronado Bay Rd. Admission is $10 per person. (619) 424-4000.

An American Christmas: Lamb’s Players Theatre presents this Southern California tradition with an original play each year. Each festival script travels to a different time and place. Set in St. Louis in 1928, An American Christmas follows one family’s differing views on whether or not to celebrate Christmas. Showtimes are 2:00 and 7:30 p.m. Tickets range from $24 to $44. Call Season Duffy at (619) 437-6050 ext. 22 for tickets. Group discounts are available for 10 or more. Lamb’s Players Theatre is located at 1142 Orange Ave. in Coronado