That was over 20 years ago in 2001.
Today he is 91, and has starred in 150 movies in total, 50 since A Beautiful Mind was released.
In A Beautiful Mind, I think Christopher Plummer looks:
A Beautiful Mind scores 7.7 out of 10 on The Movie Database.
Christopher Plummer's first acting role was as 'Walt Murdock' in Wind Across the Everglades, released in 1958 when he was 28.