Tarantino blatantly copied The Propositon for Django Unchained
The similarities between Captain Stanley's home and Candieland plus the story of revenge for an unjust flogging just really struck me too much to be ignored. Initially it appears the Captain and his Wife (who both survive the final shootout) are the main Antagonists before one slowly realizes by about act III it is simply a story devoid of protagonists.
It's almost certain that Candie was inspired by Queenie & Stanley and Tarantino simply merged them and made the fish-out-of-water woman character a sister instead of wife. The scene where the Aboriginal servant leaves his shoes and runs away in anticipation of Arthur's arrival would have really gotten to QT and it seems the whole Head House Negro Steven vs Django dynamic spun off Authur's blackfella slitting the throat of the police blackfella (It must fascinate QT that Aussies gave blacks rifles when they were employed as farm-hands and trackers). Charlie refers to John Hurt's Anti-Irish character as a Bounty Hunter. The list of similarities is too long for them all to be coincidences.
The Captain has some honourable intentions: a repeated line is "This place is uncivilized, I will civilize it" also it must be understood both movies portray revenge very differently (after seeking revenge in ACT I the Captain counsels his wife against it in ACT III). And yes the flogging happens two thirds in. But when Winstone says "It will be our death sentence" that to me is the line/scene of the film and also the reason why someone like QT would feel robbed in the final shootout - that is when he decides: I am gonna remake this, set it during southern slavery and do it MY WAY! Missing the whole point which is that cycles of violence & vengeance must be broken.