George Clooney used to revel in using Arnold Schwarzenegger's name as an alias to check into hotels because he would chuckle whenever he was addressed as the action man.
 
The Hollywood hunk admits his "Batman & Robin" co-star's name was a favourite mock moniker early on in his career and he would get a kick out of using it every time.
 
He says, "The funny thing is, when you stay in a hotel, no matter what alias you use, all of the people at the hotel have to use that name. So I would always go as Arnold Schwarzenegger. And then they (hotel staff) would go, 'Right away Mr. Schwarzenegger!' And it made me laugh. (But) I've had to change that!"