"Hellbenders" (dir. Sergio Corbucci, 1967)
The Songs: "Un Monumento" - Ennio Morricone
What You Need to Know: It's another Corbucci movie, whom Tarantino is clearly a fan of, and this time it has the unlikely lead of Joseph Cotten, playing an ex-Confederate solider hellbent on reviving the Confederacy, using stolen Union money.

"Hell Up In Harlem" (dir. Larry Cohen, 1973)
The Songs: "The Payback" - James Brown
What You Need To Know: Alright, we're cheating a bit here, but this song -- prominently featured in the trailers for "Django Unchained" -- was originally written for this blaxploitation classic. But it was actually rejected for not being "funky enough" (seriously) so James Brown released it on his own, and it became one of the seminal songs of his catalog, sampled and used in almost every medium imaginable.

"They Call Me Trinity" (dir. Enzo Barboni, 1970)
The Songs: "Trinity (Titoli)" - Annabale I Cantori Moderni
What You Need To Know: Terrence Hill and Bud Spencer might not be names as big as Clint Eastwood or Lee Van Cleef, but the pair mixed it up in over a dozen spaghetti westerns that did very well. But none were bigger than their duo of 'Trinity' films: "They Call Me Trinity" and "Trinity Is Still My Name."

"Day Of Anger" (dir. Tonino Valerii, 1967)
The Songs: "I Giorni Dell'Ira" -Riz Ortolani 
What You Need To Know: First off, savvy fans will know that this is a repeat for Tarantino, as the tune also appeared on "Kill Bill Vol. 1." As for the movie, it may be the most important in regard to 'Django,' as the story follows a gunslinger who mentors a mild-mannered citizen of a small town, but then finds his protege has become a threat.