Plummer was feted with the Eugene O'Neill Theater Center's Monte Cristo Award at the Edison Ballroom in Times Square, and Spacey, who received the same trophy in 2009, was on hand to present the Oscar winner with the special accolade.
Stepping up to the podium to deliver a short speech, Spacey teased the A Beautiful Mind star about his penchant for Jack Daniels whiskey and reminded the audience about the time Plummer borrowed a police officer's horse and rode it to a Big Apple bar.
The 83 year later laughed off the incident, joking, "Nice thing was, the policeman was promoted to captain and the horse went to a home for alcoholics."
The evening also featured a touching video tribute from Plummer's The Sound of Music co-star Andrews, who sent well wishes to the icon and his wife Elaine Taylor.
She said, "You know I love you and wish I could be there. Give my love to Elaine, that saintly woman who puts up with you every day."