From a New Jersey poultry guy to a nerdy corporate exec, the folks profiled here have one thing in common: They're serious about whistling. Kate Davis and David Heilbroner traveled to Louisburg, N.C. -- site of the International Whistling Competition -- to make this joyful movie about the no-nonsense business of competitive whistling. Presenting a year in the lives of several competitors, the film culminates with the event's nail-biting finale.