Charlton Heston was 78 in Bowling for Columbine when he played the character 'Himself - NRA President'.
That was over 22 years ago in 2002.
In 2008 he died aged 84, starring in 155 films in his career, 27 of those after Bowling for Columbine was first released. If he were alive today he would be 100.
In Bowling for Columbine, I think Charlton Heston looks: