Sterling Hayden was 55 in The Long Goodbye when he played the character 'Roger Wade'.
That was over 51 years ago in 1973.
In 1986 he died aged 70, starring in 68 films in his career, 19 of those after The Long Goodbye was first released. If he were alive today he would be 108.
In The Long Goodbye, I think Sterling Hayden looks: