Catherine Zeta-Jones claims she's getting too old for sex scenes.

The 38-year-old actress admits she can't compete with Hollywood's younger actresses for sexy roles anymore.

The 'No Reservations' star - who has two children, Dylan, seven, and four-year-old Carys, with 63-year-old husband Michal Douglas - said: "I think it's a natural progression. I'm 38 years old and I'm going to play more mums than sex symbols.

"That's a gradual thing for me because I'm too old to play younger characters."

Although she is one of the world's biggest movie stars, Catherine doesn't think she is a great actress.

The Oscar-winning beauty said: "I'm probably not the best actor in the world but on screen I have something that I know is a little different and also on stage."