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.

PHOTOS: Ryan's hotness evolution

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.

PHOTOS: Co-star couples

"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.

PHOTOS: Hollywood's hottest hookups

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

This article originally appeared on Usmagazine.com: PICTURE: Ryan Gosling, Eva Mendes Enjoy Romantic Thanksgiving Stroll in NYC