PERFORMANCE: SF Sketchfest presents Ann Magnuson: The Drawing Room Apocalypse, "[a] Salon des Beaux Arts for the Fin du Monde 2012," featuring a "mashing up of 'end of the world' songs, appropriately themed spoken word stories and bona-fide poetry" presented with a contemporary twist. (8 p.m., Yoshi's Oakland, 510 Embarcadero West, Jack London Square)

FILM: The Noir City Film Festival continues at the Castro with a noir comedy double feature screening of Unfaithfully Yours, Preston Sturges' full-length parody of The Postman Always Rings Twice, and comedy genius Frank Tashlin's The Good Humor Man, which plays havoc with film noir conventions. (7 p.m., Castro Theatre, 429 Castro)

BOOKS: Books, Inc. Opera Plaza hosts its 1st Annual Book Swap. Bring a book you are willing to part with in exchange for a new one, while meeting other book-lovers. (7 to 9 p.m., Books Inc. Opera Plaza 601 Van Ness Avenue)