Robert De Niro is reportedly in talks to join the cast of the Joker standalone movie.<br />The Hollywood veteran could star alongside Joaquin Phoenix, who is playing the iconic villain, in the much-anticipated Warner Bros. and DC film.<br />De Niro, is being eyed for the role of a talk-show host who is key to the Joker's origin, according to The Hollywood Reporter.<br />The standalone movie is said to have been handed a budget of $55 million, which is less than most DC or Marvel comic book films.<br />And insiders claim the production will look to steer clear of the non-stop fighting that has characterised other movies in the genre, and will instead focus on character exploration.<br />
