People Staff
April 20, 2011 02:05 PM

Catherine Zeta-Jones is back in action and looking great.

The actress, 41, who revealed that she’d been diagnosed with and treated for bipolar II disorder, is already back to work – and beaming.

Zeta-Jones appeared to be all smiles Wednesday on the Shreveport, Louisiana, set of the comedy Playing the Field, which also stars Jessica Biel and Gerard Butler.

She’s also already lined up her next project: Zeta-Jones has signed on to star in the film version of Rock of Ages, PEOPLE confirms. She’ll play the wife of the L.A. mayor, a conservative character who wants to do away with rock and roll, according to

For much more on this story, including details of Zeta-Jones’s private struggle and how she decided to get help, pick up this week’s issue of PEOPLE, on newsstands Friday
Dahvi Shira

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