Joaquin Phoenix in JokerWarning: This article contains spoilers for Joker: Folie À Deux.Joaquin Phoenix won an Oscar for his performance in Joker, and recently reprised the role in the polarising musical sequel Folie À Deux.However, it turns out he could have put his spin on the iconic Batman villain years earlier had things turned out differently.Speaking to Rick Rubin on the podcast Tetragrammaton, Joaquin disclosed that he “met with” Christopher Nolan about potentially playing the Joker in the Batman Begins sequel The Dark Knight.