Complex sentence: Despite the title, it has nothing to do with Rose Dunn the actual "Rose of Cimarron" but is a revenge Western with a twist-the protaganist is a woman raised by the Cherokee avenging her parents who were murdered by whites.
Split into simpler sentences: Despite the title, it has nothing to do with Rose Dunn the actual "Rose of Cimarron". The film is a revenge Western with a twist-the protaganist is a woman raised by the Cherokee avenging her parents who were murdered by whites.