FILM: Peaches Christ and Sam Sharkey host the Fall 2011 Underground Short Film Festival, featuring an eclectic mix of local, world premieres and showcases including thrillers, sex comedies, and animated presentations, boasting a "raucously, thrilling evening" of 33 short films spread out over two programs. (7:30 and 10:30 p.m., Victoria Theatre, 2961 16th Street)

PERFORMANCE: Luggage Store Gallery presents Lost Cities, an electronically animated shadow-play, "inventing a futurist epic by drawing on the free association of sounds and images from many different world cultures," using video projection and sound via low-power FM radio transmitters. (5:30 to 6:30 p.m., Luggage Store Gallery, 1000 Market Street)

ART: Driftwood Salon presents Liz Mamorsky: A 50 Year Retrospective, featuring, sculptures, paintings, and drawings from 1961 through 2011, which have been exhibited nationwide.