Back when Social Engineering meant wearing a hell of a suit and dodging the 'Bunco Squad'. All the elements are there: Greed, Scarcity, a sense of urgency, all legitimised by the leveraging of Social "proof".
If it was remade today there'd be a good chance Redford would find Newman's character down on his luck running facebook ads for crypto scams featuring AI videos of prominent celebrities.
The Old Man and the Gun
… another great film by Redford, about an elderly man who leans on his charisma and confidence to rob banks. Based on a true story.