The San Francisco Gay Men’s Chorus presents “Divas’ Revenge II.” Concert highlights include a one-act adaptation of Gilbert & Sullivan’s “HMS Pinafore.” [7 p.m., Davies Symphony Hall, 201 Van Ness Ave.]
Film fest continues: The San Francisco International Film Festival presents “Ghost Train,” “Sounds of Sand,” Bamako,” “Fay Grim,” “Opera Jawa” and “The Caiman,” among other selections. [12:45 p.m. onward; www.sffs.org]
Giants vs. Rockies: S.F. plays Colorado, and it’s Matt Cain Poster Night at the ballpark. [7:15 p.m., AT&T Park, 24 Willie Mays Plaza]
Sherwin Nuland: The surgeon, medical historian and author (“How We Die”) appears in conversation. [8 p.m., Herbst Theatre, 401 Van Ness Ave.]
Serbian rights struggles: Members of the Belgrade-based Reconstruction Women’s Fund give a presentation on the fight for LGBT, women’s and human rights in Serbia.
[7 p.m., LGBT Community Center, 1800 Market St.]
At the public library
Yearbook display: “School’s Out” exhibit features S.F. high school yearbooks from throughout the 20th century. [All day, Main Library, sixth floor, outside S.F. History Center, 100 Larkin St.]
Homework help: High school volunteers assist K-7 students. [4 to 6 p.m., Excelsior Branch, 4400 Mission St.
Poet Louise Gluck: The Pulitzer Prize winner and former United States poet laureate, reads fromher work. [8 p.m., Jewish Community Center, 3200 California St.]
‘Poems Under the Dome’: Members of the public are invited to read a poem at this open-mike gathering hosted by The City. [5:30 to 8:30 p.m., City Hall, North Light Court, 1 Dr. Carlton B. Goodlett Place]
Laura Tyson Li: The biographer discusses “Madame Chiang Kai-shek: China’s Eternal First Lady.” [6 p.m., World Affairs Council, 312 Sutter St.]