Best swan song - actors and actress

OK,
Who's delivered the best swan song - their final acting job - among moive actors and actresses?
Obviously Heath Ledger did a hell of a job w/ Dark Knight.
John Cazale wil be mentioned as well, finishing up his career - and life - with the Deer Hunter - though not a movie I am particularly fond of.
John Wayne in the Shootist?
Others?
Thoughts?

 

Peter Sellers in "Being There."

 

Wasn't Network the last movie for Peter Finch?

 

Spencer Tracy in "Guess Who's Coming To Dinner"

Peter Finch in "Network"

Henry Fonda in "On Golden Pond"

All of them blow Heath Ledger out of the water.

 

Paul Newman's final role in a live-action feature film was in "Road to Perdition" (although he did quite a few cable miniseries and voice roles after that).

Not the crowning role of his career, but quite good.

 

Fonda was the first one I thought of. Won the Oscar, though that was mostly a career achievement award.

John Holmes, "The Devil in Mr. Holmes"

 

True, but I would say Fonda did still turn in the best acting performance of the year in question.

 

James Dean as Jett in Giant, East of Eden also came out after Dean died. He was nominated for an Oscar for Giant.

And Vic Morrow was outstanding in Twilight Zone.

 

Pedro Armendariz in From Russia With Love (Karim Bey)

 

I'm really hoping someone can get a good script to Gene Hackman so Welcome to Mooseport isn't the last thing on his resume. Same goes for Connery's last flick "League of Extraordinary Gentlemen" and James Earl Jones.

 

WFW.

Now get this, honkie - you go tell Raphael that I ain't takin' no jive from no Western Union messenger! You tell that asshole, if he got somethin' to tell me to get his ass down here himself! You got that boy?

 

Beat me to that one.

Edward G. Robinson in Soylent Green? He knew he was dying when they filmed his "going home" scene in that movie. Not a good movie, but a poignant scene under the circumstances.

Also ... Soylent Green are people! They're people!