Matt Damon 'To Be George Clooney's Best Man'
Brad Pitt reportedly snubbed by Hollywood's silver fox...
The silver fox was widely expected to ask his long-standing mate Brad Pitt to do the honours - especially since Pitt is reported to have booked George in for best man duties when he ties the knot with Angelina Jolie.
But The Sun reports that a drunken bet led to the Bourne Identity star getting the gig.
A source said: "A lot of people thought Brad was a certainty to be George's best man as they have been such good friends for years. But he is probably even closer to Matt.
"Besides, many years ago, during one drunken night together, George made a promise to Matt that he would make him his best man if he ever got married – so Matt called to claim his prize.
"Brad took the news with good grace – but he did say he'd heckle Matt during his speech."
George and British lawyer Amal are keeping details of their wedding under wraps - but it is rumoured they could tie the knot at his home on Lake Como in Italy.