©Courtesy of Angel studios Finn Wittrock and Alexandra Daddario hope to find the right balance with the trailer for the bio-movie “Hershey.” In the film that recounts the Hershey Company’s genesis, Wittrock portrays chocolatier Milton S. Hershey while Daddario plays his wife, Catherine “Kitty” Hershey. The story revolves around the businessman’s persistent attempts to launch…