Celebrate the start of the San Francisco Opera’s 97th season with the Shakespearean Opera Ball, hosted by the Opera Guild. An elegant evening of cocktails, dinner and dancing is on the docket, in addition to a stunning performance of Romeo and Juliet. Festivities start at 5 p.m. at the War Memorial Opera House. Ticket packages range in price. For more information, go to sfopera.com or email [email protected]