In The Flash (2023) Ben Affleck went on record and stated, "Yeah, I did finally figure out how to play that character [Batman], and I nailed it in The Flash." Affleck was actually referring to all his fight scenes being CGI and when he was physically there he got to hang out with Gal Gadot.
In Spider-Man: Homecoming (2017), they decided to modernise Flash by not making him a handsome jock and instead a smart, preppy bully to Peter to get away from that stereotype. Here's a picture of him standing next to Brad, a handsome jock, introduced in the next film as a rival to Peter... wait.
Patrick Bateman is pretending to talk to someone called John but it also sounds like he says Sean? So he could be pretending to be talking to his brother Sean Bateman from The Rules Of Attraction, another book by Brett Easton Ellis and the movie adaptation is named Fuck The Rules.
What about it?
There is also a deleted scene in Fuck The Rules where Patrick is played by someone else on a phone call