I'm a big fan of western movies, if you like Clint Eastwood movies, like High Plains Drifter or Pale Rider, you'll definitely enjoy "The Killer" (O Matador). The plot and the ending are amazing, it shows a little of the region Northeast, the poorest and most violent in Brazil at the time of the "cangaceiros", where justice was done in violence. The protagonist Cabeleira is literally a "cabra macho" wilder and man than any John Wayne movie. If you like western you will surely enjoy this movie.
Review of The Killer
