Dusk till dawn trailer

From what the trailer of Dusk till dawn conveys i gather that the film is western on the run movie with vampires. The film is very clearly portrayed as a hybrid film consisting of sci-fi horror and western action movies. The 2 central characters are displayed as clearly evil anti heroes with innocent bystanders who they trap on their plans. The music implies a western theme to the film with the slow banjo playing in the background getting louder per word. The action iconography is signified by the use of guns and blood whilst the horror iconography is based in the vampire's and frightening music and scenery.