Graeme hit it on the head. Major in cool stuff 101, 102 & 103. Take classes that interest you, even if it’s basket weaving. A well rounded education is extremely valuable when you join the world of the working stiffs, no matter what people tell ya about specializing.
You want to learn about the technical side of the business? Read and intern. There’s a ton of books out there about digital video, film, color, and engineering. Go to school, make some friends, use school resources to travel and practice another language. DOn’t worry about owning the world quite yet, you’ll have plenty of time for that if you really want to choose that path. You must first gain experience, and the only way to do that is to get up everyday and learn as much as you can from other people. If there’s a professor that sparks your interest, make sure you take the time and go chat with them outside of class. Ask for help. Use the gift of experienced knowledge to further your own curiosities. When there’s no one around to answer your questions, make the most of your time by researching what you want to know more about. Most importantly, you have to remember to have fun along the way.
Good luck in your choices.