However, tonight's Boston showing of the sunset is apparently sold out. Tickets had to be purchased ten days in advance over the Internet, and the article we found was in Thursday's Boston Phoenix, which came out too late for us to buy tickets in time.
So I've emailed the contact at their webpage asking about standby tickets. In the meantime, Nomi and I are considering going somewhere else to enjoy the sunset (although I know it won't be the same if we don't get to pay for it). Any suggestions as to good viewing locations are welcome.