Ryan Gosling and Chris Evans were both encouraged to improvise their lines. Their first character face to face meeting was completely improvised.
On Chris Evans' first day of filming, he accidentally hit Ryan Gosling in the face with his prop gun.
The movie's $200 million budget makes it, as of 2022, the most expensive Netflix original movie, tied with Red Notice (2021). The Irishman (2019) was rumored to have cost as much as $250 million, but most sources reported its budget was $159 million.
(at around 1hr 13 mins) Lloyd Hansen (Chris Evans) says, "10 million dollars to the first person who puts a bullet in that Ken Doll's head!" Ryan Gosling just finished production of Greta Gerwig's live-action Barbie (2023), where he, of course, plays Ken.