He’s the first man to ever win three Oscars. Daniel Day Lewis, that is.
For the entire filming of My Left Foot, he didn’t leave his wheelchair, sound coherent, or even feed himself. For Last of the Mohicans he became a survivalist. He lived off the land. For In the Name of the Father, he lived in a prison cell. He starved himself. He asked the cast to insult and abuse him.
When playing Abraham Lincoln, he even signed his texts “A.”
Daniel’s style of acting, called method acting, expects him to become his character. To live in their skin. Which is a potent skill to have as a marketer.