bounty hunting

His films like 'Assault on Precinct 13' and 'Escape from New York' explore themes of lone hunters and mercenaries operating in morally ambiguous spaces.

He directly engages with bounty hunting in 'Kill Bill' volumes and 'Django Unchained,' examining revenge, pursuit, and the moral complexity of hunters and their prey.

His spaghetti westerns, particularly 'A Fistful of Dollars' and 'The Good, the Bad and the Ugly,' established the archetype of morally ambiguous bounty hunters in pursuit of reward.