post from r/Fauxmoi on reddit, people in the comment section believes it's about Cillian Murphy.
some of the comments:
"Presumably supposed to be Cillian Murphy, who said he celebrated wrapping Oppenheimer by eating cheese."
"There's a persistent rumour that Cillian Murphy and his family moved back to Ireland because he had an affair with Sienna Miller. The two of them were spotted getting into a taxi after a night out together. However, the move didn't occur until several years after that night out."
"Cillian has talked about moving back to Ireland because he didn't like that his kids were developing posh english accents. Maybe that's just the public story.."
"It’s Cillian Murphy. Multiple articles call him “Mr. Nice Guy” he also has said he celebrated Oppenheimer wrapping by eating cheese.
However, I’m leaning more towards this being sent in by Bradley Coopers people. The man is trying his damndest to get an Oscar that everyone knew Cillian was winning as soon as noms were announced. Which, I’ll be very surprised if Cillian doesn’t win."
"This is a repurposed BI from sometime ago, right?
"The spouse of this likely Oscar nominee told them if they don’t kill their friendship with a costar & her husband, there will be consequences. The friendship is not romantic but the costar is friends with a foreign born actress that got caught cheating with the likely nominee almost 2 decades ago while filming a movie. The hard copy of that movie was mysteriously destroyed. There were rumors the spouse had someone do the deed for them to send a message."
Yvonne McGuinness/Cillian Murphy/Emily Blunt/John Krasinski/Sienna Miller/Hippie Hippie Shake"
source