Dark Room Theater.Bad Movie Night:The Texas Chainsaw Massacre: The Beginning: What hath the plague of prequels wrought? This Chainsaw backstory gives us Leatherface's childhood history, which turns out to be as tender as a meat hook. Sundays, 8 p.m. $5. 2263 Mission (at 18th St.), 401-7987, www.darkroomsf.com.
Istituto Italiano di Cultura.Il mattatore: Directed by Dino Risi in 1960, screened in Italian without subtitles. Tue., Oct. 14, 6:30 p.m. 425 Washington (at Battery), 788-7142, www.sfiic.org.
Oddball Film and Video."Trance Cinema: Ritual, Shamanism and Trance": Selections from the stellar film archive include "Sherpa High Country" and "Walbiri Fire Ceremony." RSVP recommended. Sat., Oct. 11, 8 p.m. $10. email@example.com. 275 Capp (at Mission), 558-8112, www.oddballfilm.com.
San Francisco Museum of Modern Art.The Pencil of Nature: Screenings in conjunction with the exhibit "Brought to Light." Mondays, Tuesdays, Thursdays-Sundays, 1, 3 & 4:30 p.m. Continues through Nov. 7. 151 Third St. (at Mission), 357-4000, www.sfmoma.org.