Affiliate Marketing Secrets

I am majoring in Film, Video & Media Studies, and minoring in Advertising & Promotion and Global & International Studies.
I want to make movie trailers more than anything. That or working in the music industry somehow, preferably as a sound mixer or an A&R rep. I’m not exactly sure what to study for the latter so I figured Advertising would be good for making trailers and for being an A&R rep. And considering I’m from Michigan (A.K.A. the state that God created as a cruel joke), I’m going to have to move out of state at some point if I ever want a good job. My back-up plan is to work for the US Department of State in one of the US embassies around the world if I can’t get into the film or music industries, since they are so competitive, and all the people lucky enough to be from California or New York or other places like that will have had more exposure to opportunities to gain experience.
My question is is there something else you think I should be studying? I have an internship with the local CBS affiliate coming up, so hopefully that will help, but I don’t have a lot of faith. I just don’t want to be a failure.