If you’ve seen Tarantino’s “Kill Bill”, you likely remember the “O’Ren Ishii Revenge” sequence which is one of the most memorable. Tarantino requested for the japanese studio Production I.G. to work on this animation sequence; Kazuto Nakazawa directed it. The result is very impressive… 1 year of work to achieve this. I like the sketchy style of the characters.
And the music definitely plays a very important role. It’s almost fully taken from the Ennio Morricone’s soundtrack of “Death Rides a Horse”, a spaghetti western released in 1968 starring Lee Van Cleef (cool face!). On the other hand, the last music, when Ishii is on the roof, comes from “Truck Turner”, a 1974 movie with Isaac Hayes (who did the music as well).

3 obvious influences: japanese anime + spaghetti westerns + blaxploitation,
among many others like samurai movies…

It’s also funny to notice that a sentence seems to be taken from the “Death Rides a Horse” trailer: “The bandits who killed 5 defenceless people made a big mistake: they should have killed… 6.” Listen to the end of the video, you’ll hear something close.

p.s. I think the film I like the most from Tarantino is not “Kill Bill” but “Jacky Brown”.