"Forever's Gonna Start Tonight," the documentary about the wonderful Vicki Marlane, shows at midnight Sat/6 at the Castro

GUARDIAN PHOTO BY MATTHEW REAMER

STEFFI AND MIKE HUCKABY

Huckaby was long the secret weapon of Detroit's techno scene, a DJ's DJ who was key in introducing a lot of the Big Names to new sounds. He's finally getting the breakout recognition he deserves — in May, I saw him open the reconfigured garden of Berlin's huge Berghain club, bringing a welcome dose of deep to that spring affair. (Listen to his awesome new mix for XLR8R here.) Steffi, whose hit "Yours" might as well be from Detroit in 1988, comes to us from Amsterdam via Berlin, and she's aces.

Fri/5, 9 p.m.-4 a.m., $15 ($10 before 10 p.m.) Public Works, 161 Erie, SF. www.publicsf.com

DUB FILLMORE FESTIVAL

At last, a free, all-ages, daytime dubstep and reggae festival to wobble away the summer hours. One helluvalotta DJs and performers, including Mochipet, Jah Yzer, Nebakaneza, and Johnny5, bring the blaster to two outdoor stages in the Fillmore. Look out below!

Sat/6, 10 a.m.-6:30 p.m., free, all ages. Corner of Fillmore and O'Farrell Streets, SF.

ESL SHOWCASE

Ready for funkytime? The ESL label brings out soulfully gifted DJ Nickodemus of sunny house party Turntables on the Hudson for a throwdown with the Afrolicious boys (featuring live drums!), and Rob Garza of Thievery Corporation. Plus: two of my fave clubs, Surya Dub and Dub Mission, duke it out on the upstairs dance floor of Public Works, with DJ Sep and Kush Arora taking turns at the tables. Kush tells me he's breaking out some rare kuduro and deep afro-house, so get ready to drop.

Sat/6, 9:30 p.m.-3 a.m., $10 advance. Public Works, 161 Erie, SF. www.publicsf.com

SPEEDY J

The Dutch master of hard techno was famous in the 1990s for wigging crowds out, true to his name. He still brings the wiggy floor-stomp, but after moving to Berlin and embracing a few minimal and experimental tricks, he's gone deeper and broader, killing it with painterly tech effects. He'll be blowing the monthly Kontrol party away with opener M. Gervais.

Sat/6, 10 p.m.-6 a.m., $20. EndUp, 401 Sixth St., SF. www.kontrolsf.com

FOREVER'S GONNA START TONIGHT

Last month, the nightlife community lost one of its true legends, Vicki Marlane of the Hot Boxxx Girls revue at Aunt Charlie's Lounge. At 76, she lived an incredibly rambunctious life and was thought to be the oldest continuously appearing transgender stage performer in the country. She gave every number her all — and considering her propensity for epic numbers like "Total Eclipse of the Heart," that was a lot of all!

Come celebrate her gorgeousness on Sat/6 at the Castro Theatre, when the awesome and informative 2010 documentary about her, Forever's Gonna Start Tonight, screens at midnight with bonus performance footage that will bowl you over. It's a benefit for the AIDS Emergency Fund — appropriate for Vicki's generous spirit.

Sat/6, midnight, $10. Castro Theatre, 429 Castro, SF. www.castrotheatre.com