Joaquin Phoenix's laugh as Arthur Fleck apparently took a toll on the actor during 'Joker: Folie à Deux' production.

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.

"My mum screamed, ran away and woke up my dad," actor Harry Lawtey said of the prank It seems that Joaquin Phoenix lived up to his Joker: Folie à Deux character's name on set. While speaking with Variety about the upcoming comic book movie sequel,

Folie à Deux trailer is out, previewing the upcoming sequel to 2019’s hit film starring Joaquin Phoenix. What happens in the Joker: Folie à Deux trailer? The new trailer highlights more of the relationship between Arthur Fleck (Phoenix) and Harley Quinn (Lady Gaga),

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.