Hollywood crews have wrapped up their work in Chattanooga after shooting the movie ‘Water for Elephants.’ It stars Robert Pattinson and Reese Witherspoon but some of the littlest stars are from right here in the Tennessee Valley.Last Friday, while hundreds of fans were kept far away from the set on a Chickamauga farm, Sonya Gonzales got a first-hand look. Both of her sons had roles.Spoiler:They…