According to this article Elizabeth will be there also on November 12.
Events in Calistoga:
Calistoga will also host the only public question-and-answer session with comedian and actor Dane Cook, who is taking his first leading role in “Answers to Nothing,” a mystery drama about the intertwining lives of a disparate group of Angelinos against the backdrop of a child abduction case.
Cook will take questions from the audience at 2 p.m. on Nov. 12 at the Gliderport, the other major screening venue in town. He will be joined by co-stars Elizabeth Mitchell, Kali Hawk and director Matthew Leutwyler.
The will be various parties and events downtown, but the Calistoga hospitality headquarters for the event will be the Mount View Hotel on Lincoln Avenue.