He was born in an elevator at Newton-Wellesley Hospital in Newton, Massachusetts.
He was an accomplished, self-taught pianist and could also play the harmonica and the double bass.
Before any take he would say, "It's magic time."
He made two films with Tony Curtis, three with Ernie Kovacs and eleven with Walter Matthau – all three were his close friends.
He was the first actor to win both the Best Supporting Actor and Best Actor Oscars.
Paul Newman was grateful to him (because his production company produced Cool Hand Luke) and so offered him the role made famous by Robert Redford in Butch Cassidy and the Sundance Kid.
His gravestone simply reads ‘(his name) — in'.