"Legacy: Generations of Family Businesses" is the title of a new documentary on long-standing family businesses produced by Jim Howard of Hancock. The Graves' family Great Brook Farm on County Road in Walpole is featured in the program and is one of the oldest businesses in America that has continued to be run by the same family. "Legacy" will be shown Thursday, August 27 at 7:00 p.m. in the Media Center of Hastings House on Union Street in Walpole. The showing is free to the public.