I don't know, if I lived 30+ years being loved as a film icon, I think I'd feel like I had a pretty cool life by 73. He's probably lived in happy retirement for most of that.
IMO a full life encompasses what someone did do, not what they didn't do. You can live for 1000 years and always have something you wish you did, if thats what life is about or how people look at your life.
For me, I plan to achieve what I want to achieve before 73, so that whatever happens to me by that time, even if I die in a burning car wreck or fall off a cliff it won't be a tragedy for people to be like "poor guy".
I like to honor the lives and health of older people, not mourne their passing or sicknesses.
Young people that die early, thats another thing.