Clooney, 49, was treated earlier this month (Aug09) at the private Ars Medica clinic in Switzerland, a short drive from his Lake Como, Italy, holiday home.
European media reports suggested the actor, 49, was riding his Harley Davidson around Lake Lugano, at the border of Italy and Switzerland, with girlfriend Elisabetta Canalis when fell off, injuring himself.
However, the actor has laughed off the incident as nothing more than a clumsy accident.
His spokesperson tells People.com, "There was an accident and he did break his hand. He was not riding a motorcycle, it was not in Switzerland ... He was on his property in Italy and he shut the car door on his hand.
"The doctor has given him 30-40 years more to live, and no live animals were harmed during the wrapping of the hand."
It's not the actor's first car-related injury - Clooney and then-girlfriend Sarah Larson were treated for broken bones nearly two years ago when their motorcycle collided with a car in New Jersey.