Much like the film’s rejection of all things comic book, the Joker himself, Joaquin Phoenix, was rather unhappy with the inclusion of Thomas Wayne in proceedings.
In a recent interview, director Todd Phillips has revealed that Joaquin Phoenix really was not on board with any references to the wider world of Batman.
“[Joaquin] never liked saying the name Thomas Wayne.
It was clear from the very beginning that the upcoming comic book movie Joker would stray pretty far from the comics on which it is based.