Throughout his transition from television star to Hollywood leading man, George Clooney has always remained a thoroughly likeable character.
But in his most candid interview yet with Esquire Magazine, the actor casts some shade over perhaps some of the less likeable stars in the business.
Recounting a feud he endured with fiery actor Russell Crowe, George revealed how the Gladiator actor ended up sending George a book of poetry apologizing for starting a fight with him.
'The truth is that [Russell Crowe] did send me a book of poems to apologize for insulting the s*** out of me, which he did,' George said.
Russell had given a quote about George being a 'sellout' also mentioning Hollywood legends Harrison Ford and Robert De Niro.
George revealed: 'And that's when he really went off on me. "Who the f*** does this guy think he is? He's a Frank Sinatra wannabe." He really went after me.'
Knowing that he might run into George during awards season some time later, Russell then attempted to apologise to George.
'I think he said "I was misquoted" and I was like, "Yeah, yeah. Whatever."'
George also spoke about actor Leonardo DiCaprio - and suggested that actor might not have the right crowd of people around him at all times.
The pair played a basketball game together after striking up a friendship.
But the game was spoiled somewhat by Leonaro's over-baring friends, who had threatened to 'kick ass' during the game.
George ended up beating them 11-0.
'And the discrepancy between their game and how they talked about their game made me think of how important it is to have someone in your life to tell you what's what,'George pondered.
'I'm not sure if Leo has someone like that.'
However, when it came to discussing his friend Brad Pitt, George couldn't have been more complimentary.
George praised Brad for 'carrying' his movie World War Z to the 'finish line' after gruelling re-shoots had to be done.
The pair met up in London and 'drank a lot of vodka' after Brad has admitted to George the re-shoots were going to 'kill' him.
He also highlighted that Brad - and other actors such as Bill Murray - not being on Twitter, meant that they make themselves less available and more mysterious.
'Why on God's green earth would you be in Twitter?' he asked.
'I mean, when you see, like, Ashton Kutcher coming out and going, you know, "Everybody leave Joe Paterno alone," or whatever he said, you just go "Fifteen minutes longer and a thought process and probably you wouldn't have done that."
Let's hope George doesn't have to do any apologizing of his own.