Gwyneth Paltrow yelled "Cut!" as if her life depended on it. Sipping hot green tea on one of the hottest days of the year, standing in a meandering Brooklyn apartment that had been transformed into a movie set, Ms. Paltrow was directing her first film, "Dealbreakers," a short about the dubious charms of dating, with no small measure of authority. Felicia R. Lee reports in the New York Times (free subscription required to access).

