Alias Smith and Jones called the Devil's Hole Gang, loosely based on the Hole in the Wall Gang from which Cassidy recruited most of his outlaws. To lend them an element of audience sympathy, Heyes and Curry were presented as men who avoided bloodshed (though Curry did once kill in self-defense) and always were attempting to reform and seek redemption for their "prior ways". The names "Smith" and "Jones" originated from a comment in the 1969 film "Butch Cassidy and the Sundance Kid", when before one of their final hold-ups, the characters are outside a bank in Bolivia and Sundance turns to Butch and
Butch Cassidy and the Sundance Kid alerts the local police, leading to a gunfight with the outlaws. They take cover in a building but are both seriously wounded, after Butch makes a futile attempt to run to the mules in order to bring more ammunition, while Sundance provides cover fire. As dozens of Bolivian soldiers surround the area, Butch suggests the duo's next destination should be Australia. They charge out of the building guns blazing. William Goldman first came across the story of Butch Cassidy in the late 1950s and researched it on and off for eight years before sitting down to write the screenplay. Goldman