George Clooney and wife Amal did some belated celebrating in New York Tuesday, attending the New York Film Festival's 15th anniversary screening of the actor's movie O Brother, Where Art Thou?
"We sure are having fun," Clooney, 54, told PEOPLE of his first wedding anniversary at the screening. "We had a beautiful anniversary, and we're having fun."
The two brought a splash of cheer to the dreary New York day, with Amal donning a chic, green dress with matching heels.
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As for what the star has learned in his first year of newlywed bliss?
"That's a good question, but I can't officially tell you any of those things because that would be wrong, and she would be upset that I told anyone what I've learned," Clooney says of his wife, 38, a distinguished human rights activist and lawyer.
After Clooney made his way down the red carpet, he joined Amal in a lounge where they "held hands and [were] arm in arm" then were "super casual" talking to up-and-coming filmmakers at a Film Society of Lincoln Center reception held in the same space, an onlooker tells PEOPLE. The pair then made their way to the downstairs theater to enjoy the film with the rest of the New York audience – even so, Clooney feigned nerves going into the screening.
"I mean, drinking is gonna be my secret going in there to watching myself 15 years ago. On a big screen? Holy s---!" he told PEOPLE with a laugh. "That's pretty rough."
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Last year, the Clooneys tied the knot on Sept. 27 in Venice, Italy, in front of a starry assortment of friends including Matt Damon, Cindy Crawford, Bono and Emily Blunt.
While Clooney told reporters at the NYFF screening that he and Amal enjoyed a special dinner to commemorate their first year together, he spent their anniversary paying his respects to longtime friend Jerry Weintraub, paying tribute to the producer – and taking a playful dig at presidential hopeful Donald Trump – at an L.A. memorial Sunday.