The Going Out Guide recommends free or low-cost things to do this week.

Grab your blankets and lawn chairs. The season of outdoor film festivals has arrived. Kicking things off with a screening of the 1987 classic “Dirty Dancing,” the annual NOMA Summer Screen is back. Featured food trucks include Popped! Republic, DC Slices, DC Empanadas, Red Hook Lobster Pound and others.

7 p.m. Wednesday. Storey Park, 1005 First St. NE. www.nomabid.org/noma-summer-screen.

The accomplished Armenian-American oud player performs in a concert with vocal trio Zulal on the Millennium Stage. The concert is part of the Kennedy Center's "Homegrown: The Music of America" concert series.

6 p.m. Thursday. Kennedy Center, 2700 F St. NW. 202-467-4600. www.kennedy-center.org.

Jazz trumpeter and Trinidad native Etienne Charles performs songs from his 2013 release “Creole Soul,” an album exploring Afro-Caribbean, Creole, New Orleans and American traditions.

8 p.m. Friday. Library of Congress, Coolidge Auditorium, 10 First St. SE. 202-707-5502. www.loc.gov.

For the first year, the folks at Workhouse Arts Center are inviting visitors to a weekend-long celebration featuring rides, food, outdoor film screenings and live music. Visitors can watch “The SpongeBob Movie: Sponge Out of Water” and see performances by the Sixth Generation on Saturday and Thrive on Sunday.

Friday to Sunday. Workhouse Arts Center, 9518 Workhouse Way, Lorton. 703-584-2900. www.workhousearts.org.