This is a movie from the 1980s. I remember only fragments of it.
In a post-apocalyptic deserted Earth (Mad Max-like), a girl meets a scavenger (the good guy) called Hunter. The girl has freckles and a snub nose, and is pretty but not particularly a beauty. I think I remember Hunter rides a motorbike.
Later, the girl is captured by the villain. In a scene, he forces her to dance a slow together.
At the end of the movie, there is the final fight between Hunter and the villain; the girl shouts "Kill him, Hunter!". The good guy wins and
the two of them leave leaves riding in the sunset.
This is most definitely a US movie, and IIRC there is no famous actor starring in it. All these actors are white. The girl is in her mid-20s, and Hunter and the villain are perhaps in their 30s.