Tarantino knock-off?
Impossible not to think of Django Unchained watching this stylized western.
The opening scene is a ripoff of the backstory in Once Upon a Time in the West.
Well, Tarantino borrows heavily from the 70s era and so does this movie.
One thing though: Tarantino's movies are always on point when it comes to style and this one is a bit all over the place.