If you're the type who sticks around after a movie to read the credits, you'll know it takes more than one village to make a feature-length film. Ten or even 20 villages is more like it. Among the villagers are people with the title of "storyboard artist" and "film researcher," although, like many artisans in the digital world, they are a disappearing breed. "Harold and Lillian: A Hollywood Love Story" is a documentary that sheds light on two such professionals who dedicated themselves to the art.