Catherine Zeta-Jones is disappointed she finds it impossible to master the art of boiling an egg.

The Welsh actress plays a chef in new restaurant-based romantic comedy No Reservations, but insists she's not much use in the kitchen in real life.

She says, "You know, I still can't boil an egg. I never get it runny enough if I want it runny, and I never get it hard-boiled enough before it explodes.

"But I can make you (Italian dessert) tiramisu anytime you want. Cheese on toast is always good too."