Robert De Niro was 59 in Fahrenheit 9/11 when he played the character 'Self (archive footage) (uncredited)'.
That was over 20 years ago in 2004.
Today he is 80, and has starred in 175 movies in total, 83 of those since Fahrenheit 9/11 was released.
In Fahrenheit 9/11, I think Robert De Niro looks: