Walter Matthau was 72 in Grumpy Old Men when he played the character 'Max Goldman'.
That was over 30 years ago in 1993.
In 2000 he died aged 79, starring in 85 films in his career, 16 of those after Grumpy Old Men was first released. If he were alive today he would be 103.
In Grumpy Old Men, I think Walter Matthau looks: