'The Joker' role couldn't have been portrayed better than by "Joaquin Phoenix." His dedication to the character was unparalleled, pushing himself to extreme limits. For an in-depth exploration of his journey, the ups and downs of his life, and his acting career, tune in to the "Hollywood Superstars" episode featuring "Joaquin Phoenix" exclusively on "Audio Pitara."Learn more about your ad choices. Visit megaphone.fm/adchoices