@ San Francisco Main Library, Koret Auditorium, 100 Larkin Street. The Library’s Thursdays at Noon Film Series, for the month of June, is honoring the life and work of filmmaker and activist Chasnoff. 12-2pm. http://www.sflp.org 

@ California Academy of Sciences, Golden Gate Park, 55 Music Concourse Drive. This special SF Pride event includes a performance by Heklina & Friends with music by Hella Gay Dance Party and Swagger Like Us plus dance classes, the launch of the 500 Queer Scientists project and more. The evening in the Academy’s ongoing Thursday NightLife series features art, music, performances and ideas shared with experts. 6–10pm. http://www.calacademy.org

@ California Academy of Sciences, Golden Gate Park, 55 Music Concourse Drive. This special SF Pride event includes a performance by Heklina & Friends with music by Hella Gay Dance Party and Swagger Like Us plus dance classes, the launch of the 500 Queer Scientists project and more. The evening in the Academy’s ongoing Thursday NightLife series features art, music, performances and ideas shared with experts. 6–10pm. http://www.calacademy.org

@ Feinstein’s at the Nikko, 222 Mason Street. Tom Ammiano will appear with Marga in a guest set. 7–8:30pm.feinsteinsathtnenikko.com

@ Bruno’s, 2389 Mission Street. An evening of dancing featuring DJs Silly Syl, Val G, China G and Lady Ryan. 9:30pm-2am. Party XO presents Bad Habits on Facebook

@ Bruno’s, 2389 Mission Street. An evening of dancing featuring DJs Silly Syl, Val G, China G and Lady Ryan. 9:30pm-2am. Party XO presents Bad Habits on Facebook.

@ Mission Dolores Park. 11am–8:30pm. Featuring special guests Gavin Grimm and Our Lady J. The event is an intergenerational gathering of trans and gender non-confirming youth and elders. 11am–2pm. http://www. transwatch.com

@ Arnold Field, 1st Street W, Sonoma. The Stompers will celebrate pride month with an evening of fun and Pride. 6:05pm.lgbtqconnection.org