I finally have an interview for a job related to my degree! Any interview answer advice for a job in Anti-Piracy? (Music/Film Industry)

So I graduated in May with a degree in Popular Music/Popular Music Production and I've had a lot of interviews for general white collar jobs as well as working for the government for three months on a student finance project.

Now I have an interview for an Anti-Piracy company working in the Music and Film industry to help prevent commercial piracy and it would be great if anybody with relevant experience in this area of work could give me some pointers for interview questions such as 'why should we hire you over the other candidates' etc.

There are two other people interviewing for the job, and only one vacancy. I am friends with two people who work in the office, but there's also another candidate who is friends with them so I don't think it will aid my chances in any way.

Any responses are much appreciated, my interview is on Wednesday and I'm both excited for the opportunity and nervous that I won't be selected!