This title refers to a specific pirated release (a "DVDSCR" or DVD Screener) of the 2010 remake of I Spit on Your Grave. To write an essay on this topic, you should focus on the film's place within the "rape-revenge" subgenre of horror and the controversy surrounding its graphic content.
The string you provided (UNRATED DvDSCR XVID DUAL AUDIO - PriSM) refers to a specific digital pirate release:
The Vengeance: She systematically hunts them down, inflicting torture that mirrors the pain they caused her. Some of the most notorious scenes include: Using fish hooks and crows to peck out a man's eyes. Submerging an attacker in an acid bath. Castrating another with garden shears.
Technical Quality (The PriSM Release) For those familiar with the "scene" release format (indicated by the file naming convention: DvDSCR XVID DUAL AUDIO - PriSM), this particular rip is a solid specimen for its time.
This indicates the source was a promotional DVD sent to critics or awards voters. Screeners were highly prized in the piracy community because they often leaked months before the official retail DVD.