 Tarantino finished the script on April 26 , 2011 , and handed in the final draft to The Weinstein Company . In October 2012 , frequent Tarantino collaborator RZA said that he and Tarantino had intended to cross over Django Unchained with RZA 's Tarantino @-@ presented martial @-@ arts film The Man with the Iron Fists . The crossover would have seen a younger version of the blacksmith character from RZA 's film appear as a slave in an auction . However , scheduling conflicts prevented RZA 's participation . 
