Catherine Zeta Jones has gone undercover to prepare herself for the role of a chef in her latest movie, Mostly Martha.

The star was allowed to work in the kitchen of top Manhattan restaurant, Fiamma, where she took on simple roles alongside the resident chefs.

“She’s been doing a lot in the kitchen – sauteing and cutting,” said chef Michael White.

He told People magazine: “She’s a great garnisher. Drizzling oil and balsamic on plates – she does a nice job.”

The actress was not confined to backstage work, however, and was allowed out amongst the customers as a waitress: “A few people said to her, ‘You look so much like Catherine Zeta Jones.’ And she said, ‘Oh, I get that all the time.'"