Zeta-Jones sees acting as a "hobby"

Photorazzi / David Gabber

Catherine Zeta-Jones has insisted that her movie career is merely one of her hobbies.

The 37-year-old actress - who has starred in a number of films, including Traffic and Chicago - claimed that she would not be upset if she stopped being offered roles after hitting 40.

"Everything I do with my acting is a bonus. It's like a hobby. I'm not one of those people who are so self-centred that they just have to do it," the San Francisco Chronicle quotes her as saying.

"I do the best I can with my work and when I hit 40, maybe things won't change. If [my career] falters, that's fine by me. I just think it's good I'm aware of the possibility of that."