Dear Mr. Bill: You are among hundreds who have come to this site wanting a quick, capsule guide to the Exhibition business, and to each of them we say the same thing: READ the FAQs here as well as the ARCHIVES of the various Forums! (adjust the time span to cover the widest span.) As the saying goes, 'There's nothing new under the sun' and likewise the knowledge needed to make up a business plan has been discussed here before in some detail.
There are also a couple of books in the CLASSIFIEDS and CONCESSION STAND areas that bear upon your quest. Others can be found under MOTION PICTURE--EXHIBITION at such as
www.amazon.com
Perhaps your best quick source for any locale is a local manager of an independent cinema. Befriend him and eventually ask for an interview making clear that you are a student and not a potential nearby competitor. If he is a football fan, offer him some tickets to the big game at your school, or otherwise show your appreciation for his time. If he has been in business for years, he knows how to be successful --and where more than 'a few bodies are burried' in the business. He will know the difference between theory and local practice.