He’s Irish, I’m sure Cillian has nothing against the Prince himself but his grandparents would probably be rolling in their graves if they knew he met an English Royal. Cillian most likely knew that too, hence the serial killer eye contact.
He barely blinks in the whole conversation with the Prince and looks straight at him, yet he doesn't come off as offensive, on the contrary he seems quite friendly and social in the conversation. However he also doesn't blink much in his character portrayal of Thomas Shelby yet you feel the dominance of the character while he speaks. Quite a lot to learn here and goes on to show how good of an actor he is...!!!
Bir sanatçı olarak kimsenin önünde eğilmemiş,tebrik ediyorum başarılarının devamını diliyorum "U're best actors " 👏 well done Cillian Murphy =Art is made for people.