NEW YORK (AP) – Stevie Nicks keeps a white stallion in her backyard and likes costume parties and tap dancing. These are some of the things we learn about her in a new documentary, “In Your Dreams – Stevie Nicks.” The film follows her as she wrote her “In Your Dreams” album in 2010. Nicks called that “the best year of my life.” The film will premiere at the Hamptons Film Festival on October 7 and then tour other film festivals.