Denise Stewart was named director of development for Venice-based Barnstorm Films Thursday.The production company is headed by “Untamed Heart” director Tony Bill and producer Helen Bartlett. Barnstorm recently signed a two-year, non-exclusive pact with MGM. Stewart ankles the development circles of Amblin Entertainment, where she served as animation story editor and script analyst for features in development. Before Amblin, Stewart was a literary agent with Lynn Pleshette Agency and editorial analyst with Liz Darhansoff Literary Agency. While at Amblin, Stewart served as screenwriting coach for the Chesterfield Writers Film Project — a Spielberg-sponsored program that gives grants to 10 playwrights and fiction writers annually.