Matt Damon has sympathised with fellow Hollywood star Brad Pitt's life in the public eye - but is secretly pleased he does not receive the same level of attention.

The Bourne Identity leading man finds it hard to fathom how the actor and partner Angelina Jolie cope with their incessant fame - and is grateful he can travel to parts of the world unnoticed.

He says, "I honestly don't know how he does it."

"He can't walk down the street anywhere, literally anywhere. They're in Prague right now because Angelina's working, and he can't walk down the street. I went to Prague and I didn't sign an autograph for six months, and it was great!"