8.Robert De Niro first read Charles Brandt's I Heard You Paint Houses, the book The Irishman is based on, back in 2006 while he was filming The Good Shepherd. He brought it to Martin Scorsese right away.
9.Joe Pesci turned down the role of Russell Bufalino in The Irishman more than 50 times before he decided to accept it.
10.The de-aging processes used in The Irishman were so intricate that the VFX team created 1,750 shots for the movie, which is essentially the equivalent of making two movies.
11.The first draft of Jojo Rabbit actually didn't include Hitler as Jojo's imaginary friend. Taika Waititi rewrote the entire script in only a few weeks and decided to turn it into a comedy.
12.It was actually Fox Searchlight's decision to have Taika play Adolf in the movie — they believed that this particular role "needed to be handled by the person who invented that character."
13.Before Roman Griffin Davis was found, Taika and the casting directors searched five countries and watched more than 1,000 audition tapes.
14.Joaquin Phoenix lost 52 pounds before filming on Joker began — he explained that he felt it was a way to portray Arthur's fragility.
15.Joaquin didn't read the final versions of the Joker script until he arrived in NYC to start filming — he suggested they add a dance at the end, not knowing it was already there.
16.Todd Phillips kept Arthur's complete journal after filming wrapped on Joker.