Actor Don Cheadle appears with human-rights activist John Prendergast in a program addressing the genocide in Darfur and humanitarian crises worldwide. The pair are co-authors of the book “Not on Our Watch.” [7 p.m., Nob Hill Masonic Auditorium, 1111 California St.; RSVP: www.facinghistory.org/allstate]

City activities

Rising stars: Formerly homeless San Franciscans perform in “A Night With the Stars,” a talent show benefiting the Community Housing Partnership. [6 p.m. (reception) and 7:30 p.m. (show), Brava Theater Center, 2789 24th St.]

Film fest: The San Francisco International Film Festival continues. Selections include “Born and Bred,” “Ad Lib Night,” “The Other Half” and “Five-O,” an evening of storytelling about the festival’s last 50 years. [www.sfiff.org]

Literary events

Riane Eisler: The writer and social activist discusses “The Real Wealth of Nations” with journalist Jan Yanehiro. [6 p.m., Omni Hotel, 500 California St.]

W.S. Di Piero: The poet discusses “Chinese Apples.” [7 p.m., Booksmith, 1644 Haight St.]

Lectures

Hip-hop: Community conversation explores whether hip-hop has the power to create change at the civic and federal levels. [6:30 p.m., Yerba Buena Center for the Arts, 701 Mission St.; RSVP: (415) 978-2787]

Marion Nestle and Michael Pollan: The nutritionist and the journalist talk about food and eating. [8 p.m., Herbst Theatre, 401 Van Ness Ave.]

At the public library

Internet 101: Session covers how to find information on the Web. [2 to 4 p.m., Main Library, Training Center, 100 Larkin St.]

At the colleges

Activism degree: New College’s Activism and Social Change Emphasis Degree program hosts an informational session about its BA and MA opportunities. [7 p.m., 766 Valencia St., Room 24]