PICTURE: Ryan Gosling, Eva Mendes Enjoy Romantic Thanksgiving Stroll in NYC

Ryan Gosling and Eva Mendes on November 22, 2012 in New York City. Credit: PacificCoastNews.com

Eva Mendes had a lot to be thankful for this year.

The actress, 38, has been the envy of women everywhere since hooking up with her Beyond the Pines co-star Ryan Gosling -- one of Hollywood's most lusted-after A-listers -- in September 2011. And from the looks of their smiles during a walk through New York City on Thanksgiving, that doesn't seem likely to change anytime soon.

The couple of more than a year spent the holiday weekend together in NYC, where they enjoyed a romantic stroll on Nov. 22 and caught a Nov. 24 matinee performance of The Heiress, starring The Help actress Jessica Chastain, on Broadway.

"They came to the show on Saturday," an onlooker told Us Weekly of the pair, who tried (unsuccessfully) to keep a low profile. "They snuck in just as the curtain was about to drop, but people definitely noticed him."

After the curtain call, the 32-year-old Drive actor took Mendes backstage to greet Chastain and congratulate the cast on a job well done.

"He and Eva stayed close," the source said. "[They] looked in love."