There are a lot of career paths available in the realm of entertainment business. They include motion picture making in Hollywood, various positions in the print and visual media such as television, executive producers in the music album industry, etc.
Interactive marketers are also a part of entertainment business and they are required to make creative marketing plans for platforms such as the internet and mobile, ranging from viral videos to interactive websites. The goal is to promote latest motion picture, music album or game.
For more information on Entertainment Business ,
http://www.schoolanduniversity.com/study-programs/entertainment-business
http://www.trafficgeyser.net/lead/entertainment-business