Catherine Zeta-Jones is "obsessed" with smoked salmon sandwiches and crushed potato chips.

The 'Traffic' actress, who is widely acknowledged as one of Hollywood's most beautiful stars, admits she can't resist snacking on the tasty treat.

Catherine said: "This sounds so crazy but I'm obsessed with smoked salmon sandwiches on ground bread with potato chips in the middle, crushed down."

"I had it with each of my pregnancies and I actually had it two nights ago for dinner. It's one of those comfort foods."

The stunning brunette, who stars as a top chef in new movie 'No Reservations,' often rewards herself with her favorite sandwich after a grueling workout.

She said: "Exercise keeps my brain sane and gives me energy, but I have to admit I'm not a fitness fanatic."

"I'm not going to lie and tell you I do have a regime. I've got to drag myself to the gym like everybody else, but when I finish it I do enjoy it. I can eat more smoked salmon sandwiches with potato chips, crushed down in the middle!"