Catherine Zeta-Jones and Michael Douglas. Picture: Greg Allen/Invision/AP

Estranged couple Michael Douglas and Catherine Zeta-Jones have made their first red carpet appearance together in a year to Steven Soderbergh's new off-Broadway play.

The pair separated in 2013 after 13 years of marriage, however, recent reports suggest they are working on giving the marriage a second chance.

On Tuesday, the two put on a united front during a rare public outing while attending the opening night performance of Soderbergh-directed production The Library at New York's Public Theatre.

Both Zeta-Jones and Douglas have worked with the acclaimed filmmaker in the past - they both starred in Soderbergh's Traffic, while the Welsh beauty appeared in Ocean's Twelve and Side Effects. Douglas collaborated with the director on Haywire and Behind the Candelabra.

The West Australian

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