The death of the actor, who starred in The Sound Of Music and previously became the oldest actor to win an Oscar, was confirmed on Friday.
Plummer is perhaps best known for playing Captain Georg von Trapp in hit 1965 film The Sound Of Music.
He had a varied career across film, television and theatre, starring in productions on Broadway and with the Royal Shakespeare Company.
In 2017, it was announced the Canadian actor would replace Kevin Spacey in All The Money In The World after allegations of sexual misconduct emerged against the actor.
The following year he was nominated for an Oscar for his role, after being enlisted at the 11th hour, as frugal billionaire J Paul Getty in Sir Ridley Scott’s film.
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Christopher Plummer with the Performance by an Actor in a Supporting Role award, received for Beginners, at the 84th Academy Awards at the Kodak Theatre, Los Angeles in 2012
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American film director Robert Wise (standing), Canadian actor Christopher Plummer, and British actress Julie Andrews talk during a lunch break on the set of the film verssion of 'The Sound of Music,' 1965
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1999 Debi Mozar (left), Al Pacino, Philip Baker, and Christopher Plummer star in "The Insider." Photo: Touchstone Pictures
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60 Minutes Executive Producer Don Hewitt Played By Actor Philip Baker Hall (Left) Discusses One Of The Program's Most Explosive Stories Ever With Producer Lowell Bergman Played By Al Pacino (Center) And Mike Wallace By Christopher Plummer In Touchstone Drama "The Insider"