In case you missed your previous chances to check out native DC filmmakers Tarik Dahir and Jeff Gaul’s documentary “930 F Street” in the past couple of months, 9:30 Club is serving up one more opportunity to get your 1980s DC nostalgia on tonight, and admission is free (as we mentioned in the Weekend Picks post). How rad.

See, back in the 80s, 9:30 Club lived over on F street, and bands like Minor Threat, R.E.M., and Bad Brains played there a ton. It was small, had terrible sight-lines, and often emanated a funky odor. But unlike pretty much any other venue at the time, 9:30 used to host all-ages nights, thus paving the way for an entire generation of punk/new wave/reggae fans who called the place home. These shows were instrumental in fueling the so-called “Straight Edge” movement.

Besides commentary from the likes of Ian MacKaye, Peter Buck, and club owner Seth Hurwitz, the film also gives props to Mark Holmes, the man behind those super-cool-grainy-black-and-white-cut-and-paste calendar flyers that were so particular to the venue, you almost didn’t need to print the name 9:30 on them. Holmes died in 1990.

Show up early to enjoy what is billed as a “Retrospective DJ set,” and perhaps be one of the lucky first 500 people to get a free, limited edition T-shirt celebrating 25 years of 9:30 Club. For extra street cred, consider showing up with some big black Xs on the back of your hands, and acting just a little too confrontational when someone asks if you want to a drink.