FLOUR POWER When Hollywood invades Savannah's historic district to film a Revolutionary War movie, magical baker Katie Lightfoot, and her witches' coven, the Spellbook Club, take a break from casting spells for casting calls. One of the witches snags a part as an extra, while Katie's firefighter boyfriend, Declan, acts as on-set security. Katie and her aunt Lucy decide to stay out of the action, but after the movie's "fixer" fires the caterer, the...