Photo by furcafe

FOOD & DRINK: Have you ever raised a frothy pint to your lips, and thought, “What is the history of beer? And how is it made?” If so, sign up for the Brickskeller’s “What is Beer?” class, offered tonight, tomorrow, or Wednesday. Rachel Murray, Brickskeller’s Manager/Bartender, will impart her knowledge while you sample at least 12 different brews. 7-9 p.m., $35 (buy online).

MOVIES: While some of D.C.’s outdoor film fests are already halfway finished, it’s the first night for Screen on the Green. Catch Goldfinger on the National Mall (off of Constitution Avenue, between 4th and 7th Streets NW) around 8 p.m. Free.

>>The Crystal City outdoor film fest (18th and Bell Sreets) is one of those festivals which is halfway through its line-up — 5 Star Trek films down, and after tonight, 5 to go — and screens Star Trek VI: The Undiscovered Country tonight. In addition to the film, Marc Okrand, the creator of the Klingon language, will be in attendance, brought in by the Washington Shakespeare Company. The movie begins at sundown. Free.

>> Or, if you prefer your free movies with air conditioning, The National Theatre’s (1321 Pennsylvania Avenue NW) ode to Cary Grant continues with An Affair to Remember. Free, 6:30 p.m.

MUSIC: The Love Language hits the Black Cat Backstage (1811 14th St. NW) with Pree, 9 p.m., $10.

POETRY: The Busboys & Poets Shirlington location (4251 South Campbell Avenue, Arlington) invites poets to the stage for Open Mic Poetry Night, tonight with host Rebecca Dupas. Start signing up at 8 p.m., or just come to enjoy the show. $3.