Artists draw inspiration and information from wherever it can be found. For example, the narrative of James Cameron's "Avatar: The Way of Water" was influenced by his desire to be a more present father, but that's behind-the-camera work. What about in front of it? What gets an actor into the right frame of mind to be a vigilante detective or a serial killer? Well, that's all down to their method and, thankfully, we're not talking about the method method, because that kind of chaos doesn't...