Filmmaker Spike Lee receives the 2007 Film Society Directing Award at the San Francisco International Film Festival. The evening includes film clips, an interview with Lee, and a screening of Acts II and III of Lee’s documentary “When the Levees Broke.” [7:30 p.m., Castro Theatre, 429 Castro St.]
City activities
Harvest moon: Bring flashlights and binoculars for the S.F. Botanical Garden’s “White by Night — Moonlight Walk,” a guided stroll highlighting plants that are easily seen at night. [7:30 p.m., Golden Gate Park]
Baseball night: The San Francisco Giants play the Colorado Rockies. [7:15 p.m., AT&T Park, 24 Willie Mays Plaza]
Lectures
Joe Biden: The U.S. senator and Democratic presidential candidate discusses middle-class concerns at home and the nation’s standing abroad. [Noon, Parc 55 Hotel, 55 Cyril Magnin St.; 6 p.m., Crowne Plaza Hotel, 480 Sutter St.]
Green cities: Discussion involves how Bay Area cities can become leaders in urban sustainability. [Noon, Commonwealth Club, 595 Market St.]
At the public library
‘DocumentingChina’: Photo exhibit opens with a reception and community forum exploring the Chinese diaspora. [6 p.m., Main Library, Koret Auditorium and Latino/Hispanic B, 100 Larkin St.]
‘Armchair Walk’: City Guides tour leader Rob Spoor leads a “brisk sit” through the Mission Bay neighborhood. [6:30 p.m., Mission Bay Branch, 960 Fourth St.]
Literary events
Nathaniel Philbrick: The author and maritime historian discusses “Mayflower.” [7 p.m., Books Inc., 601 Van Ness Ave.]
Judith Stone: The author discusses “When She Was White.” [1 p.m., Book Passage, 1 Ferry Plaza]
