Joaquin Phoenix had one rule for the cast and crew of Joker.
When they were done, Joaquin Phoenix had to get back to eating normal food and Todd Phillips took Joker into the post-production phase.
Plus, some may have taken Joaquin Phoenix’s behavior on the Joker set as going against his one rule.
Josh Pais, who plays Arthur Fleck’s boss in the movie, recently spoke about working with Joaquin Phoenix and his one rule on the set, along with his talents as an actor.