Lawtey didn’t just walk away with a funny story either, he also gained invaluable experience working alongside Joaquin, who The Pale Blue Eye star describes as someone who delivered “a master class” every day on set. According to Harry, the Gladiator veteran actor's commitment to the role left a lasting impression on him.

Joaquin Phoenix, no doubt a method actor, got into character once more on the set of Joker: Folie à Deux; some of his character’s antics even transitioned into real-life scenarios. Harry Lawtey, in a recent interview with Variety,

Folie à Deux character's name on set. While speaking with Variety about the upcoming comic book movie sequel, actor Harry Lawtey said that Phoenix, 49, "suggested, as a joke, that we FaceTime my mum and scare her" during a rehearsal — while the Academy Award winner remained in full clown makeup for the role.

Folie à Deux, recalled the time he and Joaquin Phoenix played a trick on Lawtey’s mom on the movie set. Phoenix stayed in full Joker makeup on set, even when not filming, so Lawtey said the actor played a trick on his unsuspecting mom.