20 Things You Didn't Know About Inglourious Basterds
3. A Shared Universe Part 2
It seems that Tarantino has been planning his shared universe, the Tarantino-Verse, since his early days, having a clearly defined realms of reality and fiction. He told The Project (via Esquire) in 2017;
"There's the realer than real universe, alright, and all the characters inhabit that one. But then there's this movie universe. And so From Dusk Till Dawn, Kill Bill, they all take place in this special movie universe. So basically when the characters of Reservoir Dogs or Pulp Fiction, when they go to the movies, Kill Bill is what they go to see. From Dusk Till Dawn is what they see."
It also seems that Tim Roth's character of Oswaldo Mobray from The Hateful Eight (2015) is indeed the ancestor of Lt. Archie Hicox (Michael Fassbender) from Inglourious Basterds.