The couple, who announced they were taking a temporary break in August 2013, looked picture perfect as they stepped out in New York City together. Their marriage appeared to be firmly back on track as they attended the opening night of drama play The Library at The Public Theater.
Donning a floor-length black dress with a plunging neckline, Catherine, 44, was the epitome of elegance. The Hollywood star rocked her new full fringe and kept her makeup simple with smokey eyes.
Posing happily on the red carpet, Catherine stood next to her husband and beamed out at photographers. Michael, 69, looked as dapper as his on-screen roles in a dark suit and open neck white shirt.
The couple shared a joke and laughed affectionately with each other, with their smiles seeming to confirm their rekindled romance. Last month, Michael's mother Diana Dill told HELLO! Magazine that the pair's 13-year-marriage was on the mend.
"They are together. I knew they would work it out," said Diana. "They're both gentle people, not hysterical. They're always very affectionate and easy with each other.
"They spent three long vacations together. Something's working. They went to Canada, they have a place in Quebec, they went to Bermuda and they went to the Caribbean with the kids on vacation. They've had a lot of time in the last two months."
Catherine and Michael, who have two children Dylan, 13, and ten-year-old Carys, are also living together as a family again after the actress moved into "a house next door".
Michael speaks about reconciliation with Catherine
Michael himself had previously said he was hopeful for a reconciliation. "Sometimes people take a little bit of a break, but it doesn't necessarily mean that's the end," he said. "I'm very hopeful."