Recent high-profile rock ‘n’ roll documentaries have shamefully jumped from the Sex Pistols to Nirvana without giving ’80s American punk its due. Think of tonight’s screening of “West Coast Punk Rock Movies” not as a nostalgia trip but rather as an effort to illuminate an influential and inspirational era in musical and cultural history when regional underground scenes were exploding with confrontational energy. The L.A. media, in its efforts to come to grips with its local youthquake, unwittingly produced lasting evidence of the era’s significant countercultural tremors, and such newscasts make up much of tonight’s documentary segments. Interviews with Black Flag, Darby Crash of the Germs, and punk kids reveal the attitude at ground zero. Also included is the proper documentary Louder, Faster, Shorter, made by the people from Search & Destroy fanzine (and later RE/Search magazine) on the San Francisco/Dangerhouse scene; it features footage of the Avengers, the Dils, and a 1978 benefit show for striking mine workers. At 8:30 p.m. at the Black Cat, 1831 14th St. NW. $3. (202) 667-7960. (JD)