Matt Damon feels like a fake whenever he's shooting action sequences in movies - because his big brother is an endurance sports star.

The movie star was seen fighting and performing his own stunts in THE Bourne Identity, but he insists it's nothing compared to what his brother does.

He says, "It takes like 12 hours and you get up at like six and you go out to the lake and you watch them take off and swim two and-a-half miles.

"You stand there for 12 hours and I saw my brother like three times - every three hours.

"It kind of brought up my own insecurity because you sit there and you watch these men and women, who do this for 12 hours and I'm like on the side smoking and drinking coffee."

10/12/2003 09:07