Al Pacino has admitted the influence of his breakthrough role in The Godfather movies has affected the rest of his career.
The 72-year-old acting legend - who stars as an ex gangster in new crime comedy Stand Up Guys with Christopher Walken - played a ruthless Mafia boss in Francis Ford Coppola's classic film trilogy.
Pacino revealed: "That character was so consuming. Part of the reason why was because of its restraint, because of what is demanded of it in that style. The innards of that character, what his psyche was going through. To portray that probably affected me in some way."
The Scent Of A Woman star confessed he is still "always" looking for the next role that gets him excited, and has no plans to retire.
"Sometimes I'm tempted to say, 'Why am I doing this? Why am I still doing this?'," he said. "Then, after I don't do it for a while, I say: 'Oh, now I know why I still do it.' If I suddenly didn't want to do it any more, that'd be fine, too. I'd probably be an usher again in a playhouse."
And while he is a big Shakespeare fan, and has appeared in big screen adaptations of Richard III and The Merchant Of Venice, he insisted he is not yet ready to play King Lear, the role famously associated with the autumn of an actor's career.
"King Lear? Why don't you ask me if I'm going to climb the Empire State Building with a wire?" Pacino quipped.
"King Lear? What have I got to do with King Lear? Isn't that for other kinds of people? It's somebody else playing it. It's George C Scott or Ian McKellen. I don't do that. I'm in Stand Up Guys."