FILM: In the new "shocking and hilarious" documentary, Orgasm, Inc., filmmaker Liz Canner explores the medical industry as an employee at a pharmaceutical company that is simultaneously creating a new disease, Female Sexual Dysfunction (FSD), and racing to gain FDA approval for the first Viagra drug for women. After the screening, Good Vibrations Staff Sexologist Dr. Carol Queen will moderate a panel of experts from the medical and sexological worlds, including one of the interviewees in Orgasm Inc. Audience members will have a chance to ask experts their own questions about issues raised in the movie.

6:45 p.m. // Roxie Theater (3117 16th Street) // $5-6.50

MUSIC: San Francisco International Arts Festival presents Los Muñequitos de Matanzas, world-renowned percussionists and masters of Afro-Cuban ritual and rumba music and dance, in a special pre-festival show to benefit several Mission-based nonprofits. Los Muñequitos de Matanzas was formed in 1952 and spans spans three generations of an extended family of musicians, singers and dancers. Special guests Tambor de Fuego make their California premiere.

7 to 9:30 p.m. // Mission High School (3750 18th Street) // $5-10

KARAOKE: SFist used to live right across the street from Cafe Royale, and the Beatles Karaoke shows were by far the most painful ones to be subjected to. While it does sound fun in theory, remember the venue's poor neighbors before stripping the joy from "Daytrippers" or "Yellow Submarine" for anyone within earshot.

8 p.m. // Cafe Royale (800 Post Street) // free