For its 13th year, the SLGFF is running with a light "homo horror" theme, complete with history's queerest scary movies (The Hunger, A Nightmare on Elm Street 2) and the closing-night exhumation of Elvira, Mistress of the Dark. But hidden within the horror is an impressive collection of documentaries about fascinating gay artists, including "Buddhist bubblegum" musician Arthur Russell, queer filmmaker Derek Jarman (whose SIFF-winning doc screens tonight), and those ambitious souls who vie for the title of Miss Gay America. (Various venues and times, www.threedollarbillcinema.org, $6–$30. Oct 17–26.)