Al Pacino, Christopher Walken & Alan Arkin Are Stand Up Guys in N.Y.C.
12/09/2012 AT 12:45 PM EST
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.
It was a star-studded affair as Ben Stiller, Liev Schreiber, Matt Dillion, Jeremy Piven, Mariska Hargitay, Jon Bon Jovi, Alan Cumming, Girls' Zosia Mamet and Boardwalk Empire's Bobby Cannavale were all also in attendance.
After the screening at the Museum of Modern Art ended, guests enjoyed Appleton Estate cocktails, small bites of lobster claw, salmon tartar, mushroom crostinis and shrimp cocktails.
– Melody Chiu