Academy Award Nominations: Lincoln Leads the Pack

Al Pacino, Christopher Walken & Alan Arkin Are Stand Up Guys in N.Y.C.

It was an A-list party for the A-listers!

On Sunday night, Al Pacino, Christopher Walken, Alan Arkin and Julianna Margulies celebrated their new film Stand Up Guys at The Oak Room in New York’s Plaza Hotel.

“Al Pacino chatted with Christopher Walken, Alan Arkin and director Fisher Stevens as they sipped on cocktails,” an onlooker tells PEOPLE.

Tom Hanks, Kate Hudson, Ben Affleck & More Stars in Fun Photo Shoots at the Toronto Film Festival

While the Toronto International Film Festival may be over, PEOPLE went behind the scenes to capture some of the world’s biggest stars.

Ben Affleck – who was promoting his spy thriller Argo (Affeck directed and stars) told his costars, John Goodman, Bryan Cranston and Alan Arkin to “look mean” while they playfully tossed popcorn in the air during their photo shoot.

Owen Wilson a 'Big Poetry Fan'

Who knew? Owen Wilson has a touch of the poet.

“He’s a big poetry fan, and I am too. So we email poems to each other,” says Academy Award-wining actor Alan Arkin, 74, who recently wrapped the film Marley & Me alongside Wilson.

At the Los Angeles premiere Monday night of Arkin’s latest film Get Smart, also starring Steve Carell and Anne Hathaway, Arkin told PEOPLE: “We sent little poems to each other since the movie.”

CBB's Oscar Watch: A guide to nominated celeb parents